Variations

Contents

What’s a variation?

This guide will explain what to do if, for example, you have to list the same Shoe model, but in different Colors and Sizes.
Variations will help you describe all item variations in the same listing, also keeping a differential stock for each of them. This way, when your receive a purchase, the purchase order will show the color and size chosen by the buyer for a smooth post-sale process.
Take into account that the listed item VIP will show the above as follows:

Good news! Variations are not applicable to apparel only: you can also use them in other categories. For example, in Electric Drills, changing items for voltage. Therefore, you will be able to sell 110V- and 220V-drills in the same listing.

Benefits

  • The buyer can see the different alternatives and their availability in the same listing.
  • Fewer questions between buyer and seller.
  • The purchase order will show the color and size chosen by the buyer for a smooth post-sale process and no claims.
  • Improved stock control and handling.
  • Moreover, you can send the stock keeping unit (SKU) for each variation. This will be really useful for those sellers who keep stock inventory management.

Considerations

  • Each variation should have the same price. While the API allows for adding different prices to each variation, the VIP will only show the highest price, which will be also considered when the payment is made.

List items with variations

To list items with variations, you should choose the category where you want to list. This can be identified when the attribute_types field shows variations. Then, you should query the attribute API and select the attributes by which your items can vary using the allow_variations tag.

In turn, bear in mind that you can send the attributes property for each variation, specifying the item characteristics typical of each variation for your item. In this section you can upload the attributes identified with the variation_attribute tag in the API. For example, if you sell a mobile phone in different colors and have a bar code for each, you can upload it for each variation in the attributes section.

To learn about mandatory variation attributes, look for those with tags required = true. A category with allow variation but without attributes with this tag means that you can create items without variations.

The VIP does not currently, but will in the future, show attributes with the variation_attribute tag. We encourage you to complete them in order to get ready for the new functionality involving these attributes!
Imagine that you want to sell a fan with Brown and Black color variations, but you also want to upload the bar code (EAN). To do that, go to the attribute API of that category and check if the attributes Color and EAN have the allow_variations and variation_attribute tags, respectively.

Example

https://api.mercadolibre.com/categories/MLA126186/attributes

Response

[
  {
    "id": "BRAND",
    "name": "Marca",
    "tags": {
      "fixed": true
    },
    "value_type": "string",
    "value_max_length": 60,
    "values": [
      {
        "id": "5601",
        "name": "BGH"
      }
    ],
    "attribute_group_id": "MAIN",
    "attribute_group_name": "Atributos Principales"
  },
  {
    "id": "COLOR",
    "name": "Color",
    "tags": {
      "allow_variations": true,
      "hidden": true
    },
    "type": "color",
    "value_type": "list",
    "values": [
      {
        "id": "52049",
        "name": "Negro",
        "metadata": {
          "rgb": "000000"
        }
      },
      {
        "id": "51993",
        "name": "Rojo",
        "metadata": {
          "rgb": "FF0000"
        }
      },
      {
        "id": "52035",
        "name": "Violeta",
        "metadata": {
          "rgb": "9F00FF"
        }
      },
      {
        "id": "52028",
        "name": "Azul",
        "metadata": {
          "rgb": "1717FF"
        }
      },
      {
        "id": "52005",
        "name": "Marrón",
        "metadata": {
          "rgb": "A0522D"
        }
      },
      {
        "id": "52051",
        "name": "Gris oscuro",
        "metadata": {
          "rgb": "666666"
        }
      },
      {
        "id": "52000",
        "name": "Naranja",
        "metadata": {
          "rgb": "FF8C00"
        }
      },
      {
        "id": "52014",
        "name": "Verde",
        "metadata": {
          "rgb": "0DA600"
        }
      },
      {
        "id": "51994",
        "name": "Rosa",
        "metadata": {
          "rgb": "FCB1BE"
        }
      },
      {
        "id": "283164",
        "name": "Dorado",
        "metadata": {
          "rgb": "FFD700"
        }
      },
      {
        "id": "52007",
        "name": "Amarillo",
        "metadata": {
          "rgb": "FFED00"
        }
      },
      {
        "id": "52053",
        "name": "Plateado",
        "metadata": {
          "rgb": "CBCFD0"
        }
      },
      {
        "id": "283165",
        "name": "Gris claro",
        "metadata": {
          "rgb": "E1E1E1"
        }
      },
      {
        "id": "52021",
        "name": "Celeste",
        "metadata": {
          "rgb": "83DDFF"
        }
      },
      {
        "id": "52055",
        "name": "Blanco",
        "metadata": {
          "rgb": "FFFFFF"
        }
      },
      {
        "id": "51998",
        "name": "Bordó",
        "metadata": {
          "rgb": "830500",
          "parent_id": "51993"
        }
      },
      {
        "id": "51996",
        "name": "Terracota",
        "metadata": {
          "rgb": "C63633",
          "parent_id": "51993"
        }
      },
      {
        "id": "283149",
        "name": "Coral",
        "metadata": {
          "rgb": "FA8072",
          "parent_id": "51993"
        }
      },
      {
        "id": "283148",
        "name": "Coral claro",
        "metadata": {
          "rgb": "F9AC95",
          "parent_id": "51993"
        }
      },
      {
        "id": "52047",
        "name": "Violeta oscuro",
        "metadata": {
          "rgb": "4E0087",
          "parent_id": "52035"
        }
      },
      {
        "id": "283162",
        "name": "Índigo",
        "metadata": {
          "rgb": "7A64C6",
          "parent_id": "52035"
        }
      },
      {
        "id": "52038",
        "name": "Lila",
        "metadata": {
          "rgb": "CC87FF",
          "parent_id": "52035"
        }
      },
      {
        "id": "52036",
        "name": "Lavanda",
        "metadata": {
          "rgb": "D9D2E9",
          "parent_id": "52035"
        }
      },
      {
        "id": "52033",
        "name": "Azul oscuro",
        "metadata": {
          "rgb": "013267",
          "parent_id": "52028"
        }
      },
      {
        "id": "283161",
        "name": "Azul marino",
        "metadata": {
          "rgb": "0F5299",
          "parent_id": "52028"
        }
      },
      {
        "id": "52031",
        "name": "Azul acero",
        "metadata": {
          "rgb": "6FA8DC",
          "parent_id": "52028"
        }
      },
      {
        "id": "52029",
        "name": "Azul claro",
        "metadata": {
          "rgb": "DCECFF",
          "parent_id": "52028"
        }
      },
      {
        "id": "283155",
        "name": "Marrón oscuro",
        "metadata": {
          "rgb": "5D3806",
          "parent_id": "52005"
        }
      },
      {
        "id": "283154",
        "name": "Marrón claro",
        "metadata": {
          "rgb": "AF8650",
          "parent_id": "52005"
        }
      },
      {
        "id": "283153",
        "name": "Suela",
        "metadata": {
          "rgb": "FAEBD7",
          "parent_id": "52005"
        }
      },
      {
        "id": "52001",
        "name": "Beige",
        "metadata": {
          "rgb": "F5F3DC",
          "parent_id": "52005"
        }
      },
      {
        "id": "283152",
        "name": "Chocolate",
        "metadata": {
          "rgb": "9B3F14",
          "parent_id": "52000"
        }
      },
      {
        "id": "283151",
        "name": "Naranja oscuro",
        "metadata": {
          "rgb": "D2691E",
          "parent_id": "52000"
        }
      },
      {
        "id": "283150",
        "name": "Naranja claro",
        "metadata": {
          "rgb": "FDAF20",
          "parent_id": "52000"
        }
      },
      {
        "id": "52003",
        "name": "Piel",
        "metadata": {
          "rgb": "FFE4C4",
          "parent_id": "52000"
        }
      },
      {
        "id": "52019",
        "name": "Verde oscuro",
        "metadata": {
          "rgb": "003D00",
          "parent_id": "52014"
        }
      },
      {
        "id": "283158",
        "name": "Verde musgo",
        "metadata": {
          "rgb": "3F7600",
          "parent_id": "52014"
        }
      },
      {
        "id": "283157",
        "name": "Verde limón",
        "metadata": {
          "rgb": "73E129",
          "parent_id": "52014"
        }
      },
      {
        "id": "52015",
        "name": "Verde claro",
        "metadata": {
          "rgb": "9FF39F",
          "parent_id": "52014"
        }
      },
      {
        "id": "52042",
        "name": "Fucsia",
        "metadata": {
          "rgb": "FF00EC",
          "parent_id": "51994"
        }
      },
      {
        "id": "283163",
        "name": "Rosa chicle",
        "metadata": {
          "rgb": "FF51A8",
          "parent_id": "51994"
        }
      },
      {
        "id": "52045",
        "name": "Rosa pálido",
        "metadata": {
          "rgb": "D06EA8",
          "parent_id": "51994"
        }
      },
      {
        "id": "52043",
        "name": "Rosa claro",
        "metadata": {
          "rgb": "FADBE2",
          "parent_id": "51994"
        }
      },
      {
        "id": "52012",
        "name": "Dorado oscuro",
        "metadata": {
          "rgb": "BF9000",
          "parent_id": "52007"
        }
      },
      {
        "id": "52010",
        "name": "Ocre",
        "metadata": {
          "rgb": "EACB53",
          "parent_id": "52007"
        }
      },
      {
        "id": "283156",
        "name": "Caqui",
        "metadata": {
          "rgb": "F0E68C",
          "parent_id": "52007"
        }
      },
      {
        "id": "52008",
        "name": "Crema",
        "metadata": {
          "rgb": "FFFFE0",
          "parent_id": "52007"
        }
      },
      {
        "id": "52024",
        "name": "Azul petróleo",
        "metadata": {
          "rgb": "1E6E7F",
          "parent_id": "52021"
        }
      },
      {
        "id": "283160",
        "name": "Turquesa",
        "metadata": {
          "rgb": "40E0D0",
          "parent_id": "52021"
        }
      },
      {
        "id": "52022",
        "name": "Agua",
        "metadata": {
          "rgb": "E0FFFF",
          "parent_id": "52021"
        }
      },
      {
        "id": "283159",
        "name": "Cyan",
        "metadata": {
          "rgb": "00FFFF",
          "parent_id": "52021"
        }
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "PACKAGE_HEIGHT",
    "name": "Altura del paquete",
    "tags": {
      "hidden": true,
      "read_only": true,
      "variation_attribute": true
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "mm",
        "name": "mm"
      },
      {
        "id": "cm",
        "name": "cm"
      },
      {
        "id": "in",
        "name": "in"
      },
      {
        "id": "pulgadas",
        "name": "pulgadas"
      },
      {
        "id": "ft",
        "name": "ft"
      },
      {
        "id": "m",
        "name": "m"
      },
      {
        "id": "km",
        "name": "km"
      }
    ],
    "default_unit": "mm",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "PACKAGE_WIDTH",
    "name": "Ancho del paquete",
    "tags": {
      "hidden": true,
      "read_only": true,
      "variation_attribute": true
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "mm",
        "name": "mm"
      },
      {
        "id": "cm",
        "name": "cm"
      },
      {
        "id": "in",
        "name": "in"
      },
      {
        "id": "pulgadas",
        "name": "pulgadas"
      },
      {
        "id": "ft",
        "name": "ft"
      },
      {
        "id": "m",
        "name": "m"
      },
      {
        "id": "km",
        "name": "km"
      }
    ],
    "default_unit": "mm",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "TURNTABLE",
    "name": "Bandeja Giratoria",
    "tags": {
    },
    "value_type": "boolean",
    "values": [
      {
        "id": "242084",
        "name": "No",
        "metadata": {
          "value": false
        }
      },
      {
        "id": "242085",
        "name": "Sí",
        "metadata": {
          "value": true
        }
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "NUMBER_OF_PROGRAMS",
    "name": "Cantidad de Programas",
    "tags": {
      "hidden": true
    },
    "value_type": "number",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "VOLUME_CAPACITY",
    "name": "Capacidad",
    "tags": {
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "l",
        "name": "l"
      },
      {
        "id": "cc",
        "name": "cc"
      },
      {
        "id": "ft³",
        "name": "ft³"
      },
      {
        "id": "ml",
        "name": "ml"
      },
      {
        "id": "mm³",
        "name": "mm³"
      }
    ],
    "default_unit": "l",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "CONVECTION",
    "name": "Convección",
    "tags": {
    },
    "value_type": "boolean",
    "values": [
      {
        "id": "242084",
        "name": "No",
        "metadata": {
          "value": false
        }
      },
      {
        "id": "242085",
        "name": "Sí",
        "metadata": {
          "value": true
        }
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "TURNTABLE_DIAMETER",
    "name": "Diámetro de Bandeja Giratoria",
    "tags": {
      "hidden": true
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "mm",
        "name": "mm"
      },
      {
        "id": "cm",
        "name": "cm"
      },
      {
        "id": "ft",
        "name": "ft"
      },
      {
        "id": "in",
        "name": "in"
      },
      {
        "id": "km",
        "name": "km"
      },
      {
        "id": "m",
        "name": "m"
      },
      {
        "id": "pulgadas",
        "name": "pulgadas"
      }
    ],
    "default_unit": "mm",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "EAN",
    "name": "EAN",
    "tags": {
      "hidden": true,
      "multivalued": true,
      "variation_attribute": true
    },
    "type": "product_identifier",
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "FREQUENCY",
    "name": "Frecuencia",
    "tags": {
      "hidden": true
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "hz",
        "name": "hz"
      },
      {
        "id": "ghz",
        "name": "ghz"
      },
      {
        "id": "khz",
        "name": "khz"
      },
      {
        "id": "mhz",
        "name": "mhz"
      },
      {
        "id": "rpm",
        "name": "rpm"
      }
    ],
    "default_unit": "hz",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "MICROWAVE_FUNCTIONS",
    "name": "Funciones",
    "tags": {
      "hidden": true,
      "multivalued": true
    },
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "GRILL",
    "name": "Grill",
    "tags": {
    },
    "value_type": "boolean",
    "values": [
      {
        "id": "242084",
        "name": "No",
        "metadata": {
          "value": false
        }
      },
      {
        "id": "242085",
        "name": "Sí",
        "metadata": {
          "value": true
        }
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "GTIN",
    "name": "GTIN",
    "tags": {
      "hidden": true,
      "multivalued": true,
      "variation_attribute": true
    },
    "type": "product_identifier",
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "JAN",
    "name": "JAN",
    "tags": {
      "hidden": true,
      "variation_attribute": true
    },
    "type": "product_identifier",
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "LINE",
    "name": "Línea",
    "tags": {
      "hidden": true
    },
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "PACKAGE_LENGTH",
    "name": "Longitud del paquete",
    "tags": {
      "hidden": true,
      "read_only": true,
      "variation_attribute": true
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "mm",
        "name": "mm"
      },
      {
        "id": "cm",
        "name": "cm"
      },
      {
        "id": "in",
        "name": "in"
      },
      {
        "id": "pulgadas",
        "name": "pulgadas"
      },
      {
        "id": "ft",
        "name": "ft"
      },
      {
        "id": "m",
        "name": "m"
      },
      {
        "id": "km",
        "name": "km"
      }
    ],
    "default_unit": "mm",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "DIMENSIONS",
    "name": "Medidas",
    "tags": {
    },
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "MODEL",
    "name": "Modelo",
    "tags": {
    },
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "MAIN",
    "attribute_group_name": "Atributos Principales"
  },
  {
    "id": "ALPHANUMERIC_MODEL",
    "name": "Modelo Alfanumérico",
    "tags": {
      "hidden": true
    },
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "DETAILED_MODEL",
    "name": "Modelo Detallado",
    "tags": {
      "hidden": true
    },
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "MPN",
    "name": "MPN",
    "tags": {
      "hidden": true,
      "multivalued": true,
      "variation_attribute": true
    },
    "type": "product_identifier",
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "POWER_LEVELS",
    "name": "Niveles de Potencia",
    "tags": {
      "hidden": true
    },
    "value_type": "number",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "PACKAGE_WEIGHT",
    "name": "Peso del paquete",
    "tags": {
      "hidden": true,
      "read_only": true,
      "variation_attribute": true
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "mcg",
        "name": "mcg"
      },
      {
        "id": "mg",
        "name": "mg"
      },
      {
        "id": "g",
        "name": "g"
      },
      {
        "id": "oz",
        "name": "oz"
      },
      {
        "id": "lb",
        "name": "lb"
      },
      {
        "id": "kg",
        "name": "kg"
      }
    ],
    "default_unit": "mcg",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "POWER",
    "name": "Potencia",
    "tags": {
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "w",
        "name": "w"
      },
      {
        "id": "btu/h",
        "name": "btu/h"
      },
      {
        "id": "cv",
        "name": "cv"
      },
      {
        "id": "fg",
        "name": "fg"
      },
      {
        "id": "hp",
        "name": "hp"
      },
      {
        "id": "kcal/h",
        "name": "kcal/h"
      },
      {
        "id": "kw",
        "name": "kw"
      },
      {
        "id": "mw",
        "name": "mw"
      },
      {
        "id": "tfr",
        "name": "tfr"
      },
      {
        "id": "va",
        "name": "va"
      }
    ],
    "default_unit": "w",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "GRILL_POWER",
    "name": "Potencia de Grill",
    "tags": {
      "hidden": true
    },
    "value_type": "number_unit",
    "value_max_length": 60,
    "allowed_units": [
      {
        "id": "w",
        "name": "w"
      },
      {
        "id": "btu/h",
        "name": "btu/h"
      },
      {
        "id": "cv",
        "name": "cv"
      },
      {
        "id": "fg",
        "name": "fg"
      },
      {
        "id": "hp",
        "name": "hp"
      },
      {
        "id": "kcal/h",
        "name": "kcal/h"
      },
      {
        "id": "kw",
        "name": "kw"
      },
      {
        "id": "mw",
        "name": "mw"
      },
      {
        "id": "tfr",
        "name": "tfr"
      },
      {
        "id": "va",
        "name": "va"
      }
    ],
    "default_unit": "w",
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "MIRRORED_DOOR",
    "name": "Puerta Espejada",
    "tags": {
      "hidden": true
    },
    "value_type": "boolean",
    "values": [
      {
        "id": "242084",
        "name": "No",
        "metadata": {
          "value": false
        }
      },
      {
        "id": "242085",
        "name": "Sí",
        "metadata": {
          "value": true
        }
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "PROGRAMMABLE_KEYS",
    "name": "Teclas Programables",
    "tags": {
      "hidden": true
    },
    "value_type": "boolean",
    "values": [
      {
        "id": "242084",
        "name": "No",
        "metadata": {
          "value": false
        }
      },
      {
        "id": "242085",
        "name": "Sí",
        "metadata": {
          "value": true
        }
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "MICROWAVE_TYPE",
    "name": "Tipo",
    "tags": {
    },
    "value_type": "list",
    "values": [
      {
        "id": "289784",
        "name": "De Apoyo"
      },
      {
        "id": "289785",
        "name": "De Embutir"
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "CHILD_SAFETY_LOCK",
    "name": "Traba de Seguridad para Niños",
    "tags": {
      "hidden": true
    },
    "value_type": "boolean",
    "values": [
      {
        "id": "242084",
        "name": "No",
        "metadata": {
          "value": false
        }
      },
      {
        "id": "242085",
        "name": "Sí",
        "metadata": {
          "value": true
        }
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "UPC",
    "name": "UPC",
    "tags": {
      "hidden": true,
      "multivalued": true,
      "variation_attribute": true
    },
    "type": "product_identifier",
    "value_type": "string",
    "value_max_length": 60,
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  },
  {
    "id": "VOLTAGE",
    "name": "Voltaje",
    "tags": {
      "hidden": true
    },
    "value_type": "list",
    "values": [
      {
        "id": "198812",
        "name": "110V / 220V"
      },
      {
        "id": "198813",
        "name": "220V"
      },
      {
        "id": "198814",
        "name": "110V"
      }
    ],
    "attribute_group_id": "DFLT",
    "attribute_group_name": "Otros"
  }
]

After checking the attribute API configuration, you should create a listing JSON like the one below.

Example

curl -X POST -d '
{  
   "listing_type_id":"gold_special",
   "pictures":[  
      {  
         "id":"553111-MLA20482692355_112015"
      }
   ],
   "title":"Item de testeo",
   "available_quantity":4,
   "category_id":"MLA378496",
   "buying_mode":"buy_it_now",
   "currency_id":"ARS",
   "condition":"not_specified",
   "site_id":"MLA",
   "price":100,
   "variations":[  
      {  
         "attribute_combinations":[  
            {  
               "name":"Color",
               "value_id":"52049",
               "value_name":"Negro"
            }
         ],
         "price":100,
         "available_quantity":4,
         "attributes":[  
            {  
               "id":"EAN",
               "value_name":"4006381333931"
            }
         ],
         "sold_quantity":0,
         "picture_ids":[  
            "553111-MLA20482692355_112015"
         ]
      },
      {  
         "attribute_combinations":[  
            {  
               "name":"Color",
               "value_id":"52005",
               "value_name":"Marrón"
            }
         ],
         "price":100,
         "available_quantity":4,
         "attributes":[  
            {  
               "id":"EAN",
               "value_name":"9780471117094"
            }
         ],
         "sold_quantity":0,
         "picture_ids":[  
            "553111-MLA20482692355_112015"
         ]
      }
   ]
}' 'http://api.mercadolibre.com/items?access_token=$ACCESS_TOKEN '

Response

{  
   "id":"MLA657381404",
   "site_id":"MLA",
   "title":"Item De Testeo",
   "subtitle":null,
   "seller_id":222576250,
   "category_id":"MLA378496",
   "official_store_id":null,
   "price":100,
   "base_price":100,
   "original_price":null,
   "currency_id":"ARS",
   "initial_quantity":8,
   "available_quantity":8,
   "sold_quantity":0,
   "buying_mode":"buy_it_now",
   "listing_type_id":"gold_special",
   "start_time":"2017-03-10T21:18:09.588Z",
   "stop_time":"2037-03-05T21:18:09.588Z",
   "end_time":"2037-03-05T21:18:09.588Z",
   "expiration_time":"2017-05-29T21:18:09.651Z",
   "condition":"not_specified",
   "permalink":"http://articulo.mercadolibre.com.ar/MLA-657381404-item-de-testeo-_JM",
   "thumbnail":"http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
   "secure_thumbnail":"https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
   "pictures":[  
      {  
         "id":"553111-MLA20482692355_112015",
         "url":"http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
         "secure_url":"https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
         "size":"320x320",
         "max_size":"320x320",
         "quality":""
      }
   ],
   "video_id":null,
   "descriptions":[  

   ],
   "accepts_mercadopago":true,
   "non_mercado_pago_payment_methods":[  

   ],
   "shipping":{  
      "mode":"not_specified",
      "local_pick_up":false,
      "free_shipping":false,
      "methods":[  

      ],
      "dimensions":null,
      "tags":[  
         "me2_available"
      ],
      "logistic_type":"not_specified"
   },
   "international_delivery_mode":"none",
   "seller_address":{  
      "id":189626559,
      "comment":"",
      "address_line":"santa fe 1000",
      "zip_code":"1641",
      "city":{  
         "id":"",
         "name":"Acassuso"
      },
      "state":{  
         "id":"AR-B",
         "name":"Buenos Aires"
      },
      "country":{  
         "id":"AR",
         "name":"Argentina"
      },
      "latitude":-34.4817565,
      "longitude":-58.5056779,
      "search_location":{  
         "neighborhood":{  
            "id":"TUxBQkFDQTMyNzNa",
            "name":"Acassuso"
         },
         "city":{  
            "id":"TUxBQ1NBTjg4ZmJk",
            "name":"San Isidro"
         },
         "state":{  
            "id":"TUxBUEdSQWU4ZDkz",
            "name":"Bs.As. G.B.A. Norte"
         }
      }
   },
   "seller_contact":null,
   "location":{  

   },
   "geolocation":{  
      "latitude":-34.4817565,
      "longitude":-58.5056779
   },
   "coverage_areas":[  

   ],
   "attributes":[  
      {  
         "id":"FAN_TYPE",
         "name":"Tipo de Ventilador",
         "value_id":"291719",
         "value_name":"De Techo",
         "attribute_group_id":"DFLT",
         "attribute_group_name":"Otros"
      },
      {  
         "id":"BRAND",
         "name":"Marca",
         "value_id":"86416",
         "value_name":"Eiffel",
         "attribute_group_id":"MAIN",
         "attribute_group_name":"Atributos Principales"
      }
   ],
   "warnings":[  

   ],
   "listing_source":"",
   "variations":[  
      {  
         "id":14979332589,
         "attribute_combinations":[  
            {  
               "id":"COLOR",
               "name":"Color",
               "value_id":"52049",
               "value_name":"Negro"
            }
         ],
         "price":100,
         "available_quantity":4,
         "sold_quantity":0,
         "picture_ids":[  
            "553111-MLA20482692355_112015"
         ],
         "seller_custom_field":null,
         "catalog_product_id":null,
         "attributes":[  
            {  
               "id":"EAN",
               "name":"EAN",
               "value_id":null,
               "value_name":"4006381333931"
            }
         ]
      },
      {  
         "id":14979332592,
         "attribute_combinations":[  
            {  
               "id":"COLOR",
               "name":"Color",
               "value_id":"52005",
               "value_name":"Marrón"
            }
         ],
         "price":100,
         "available_quantity":4,
         "sold_quantity":0,
         "picture_ids":[  
            "553111-MLA20482692355_112015"
         ],
         "seller_custom_field":null,
         "catalog_product_id":null,
         "attributes":[  
            {  
               "id":"EAN",
               "name":"EAN",
               "value_id":null,
               "value_name":"9780471117094"
            }
         ]
      }
   ],
   "status":"active",
   "sub_status":[  

   ],
   "tags":[  
      "immediate_payment"
   ],
   "warranty":null,
   "catalog_product_id":null,
   "domain_id":null,
   "seller_custom_field":null,
   "parent_item_id":null,
   "differential_pricing":null,
   "deal_ids":[  

   ],
   "automatic_relist":false,
   "date_created":"2017-03-10T21:18:09.763Z",
   "last_updated":"2017-03-10T21:18:09.763Z"
}

Once listed, the item will be displayed in the VIP like this:

Notes:

  • There are mandatory properties that should be sent in each variation. These are: price, available_quantity, pictures and attribute_combinations.
  • attribute_combinations of all variations should include the same attributes, but with no repetition of value combinations. The only exception is Color secundario [secondary Color] in Clothes and accessories. For these categories, you can optionally send Color secundario inattribute_combinations of different variations.
  • If you send an attribute with the allow_variations tag in the item’s attributes property, we will rearrange the information and generate the variation with its corresponding attribute.
  • If you send an attribute with the variation_attribute tag in the item’s attributes property, we will rearrange the information and move this attribute to the attributes section of each variation.
  • If there is no value, and you need to send an attribute with “list” type value (value_type = list), load it as “value_name”.

EXAMPLE: if you want to use size 46 and it is not among possible Size attribute values in category MLU185734, you can use it anyway as “value_name”: “46”, as shown below:

"variations": [{
    "attribute_combinations": [{
      "id": "103000",
      "value_id": "4883e91"     --> value_id que corresponde al talle: 38
    }, {
      "id": "11000",
      "value_id": "10295e4"
    }],
    "available_quantity": 17,
    "price": 1299.0,
    "seller_custom_field": "611111",
    "picture_ids": ["https://s-media-cache-ak0.pinimg.com/736x/63/9c/a0/639ca03b5ca79e73002b4f2d4776d03b.jpg",
    ]
  }, {
    "attribute_combinations": [{
      "id": "103000",
      "value_id": "86e5356"     --> value_id que corresponde al talle: 44
    }, {
      "id": "11000",
      "value_id": "10295e4"
    }],
    "available_quantity": 12,
    "price": 1299.0,
    "seller_custom_field": "6131111",
    "picture_ids": ["https://s-media-cache-ak0.pinimg.com/736x/63/9c/a0/639ca03b5ca79e73002b4f2d4776d03b.jpg",
      ]
  }, {
    "attribute_combinations": [{
      "id": "103000",
      "value_name": "46"     --> value_name que agregamos para el talle 46
    }, {
      "id": "11000",
      "value_id": "10295e4"
    }],
    "available_quantity": 21,
    "price": 1299.0,
    "seller_custom_field": "611111”,
    "picture_ids": ["https://s-media-cache-ak0.pinimg.com/736x/63/9c/a0/639ca03b5ca79e73002b4f2d4776d03b.jpg",
      ]
  }]

For more information review documentation about Attributes.

Query variations

Well done! You have already listed your item with variations! Now, you will learn the two possible ways to query them.
One way is to check the variations section under item information:

Call

curl -X GET https://api.mercadolibre.com/items/{ITEM_ID}

Example

curl -X GET https://api.mercadolibre.com/items/MLA658778048?attributes=variations

Response

{
    "variations": [
        {
            "id": 15093610263,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52000",
                    "value_name": "Naranja"
                }
            ],
            "price": 100,
            "available_quantity": 4,
            "sold_quantity": 0,
            "picture_ids": [
                "553111-MLA20482692355_112015"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null
        }
    ]
}

Or otherwise, with the next call, which will directly filter the previous response to show the variations only:

Call

curl -X GET https://api.mercadolibre.com/items/{ITEM_ID}/variations

Example

curl -X GET https://api.mercadolibre.com/items/MLA658778048/variations

Response

[
  {
    "id": 15092589430,
    "attribute_combinations": [
      {
        "id": "COLOR",
        "name": "Color",
        "value_id": "52005",
        "value_name": "Marrón"
      }
    ],
    "price": 100,
    "available_quantity": 4,
    "sold_quantity": 0,
    "picture_ids": [
      "553111-MLA20482692355_112015"
    ],
    "seller_custom_field": null,
    "catalog_product_id": null
  },
  {
    "id": 15092589427,
    "attribute_combinations": [
      {
        "id": "COLOR",
        "name": "Color",
        "value_id": "52049",
        "value_name": "Negro"
      }
    ],
    "price": 100,
    "available_quantity": 4,
    "sold_quantity": 0,
    "picture_ids": [
      "553111-MLA20482692355_112015"
    ],
    "seller_custom_field": null,
    "catalog_product_id": null
  }
]

Once you get each variation Id, you can query one in particular by adding the variation_id at the end of the previous call, as shown below.
Call

curl -X GET https://api.mercadolibre.com/items/{Item_id}/variations/{Variation_id}

Example

curl -X GET https://api.mercadolibre.com/items/MLA658778048/variations/15092589430

Response

{
  "id": 15092589430,
  "attribute_combinations": [
    {
      "id": "COLOR",
      "name": "Color",
      "value_id": "52028",
      "value_name": "Celeste Oscuro"
    }
  ],
  "price": 100,
  "available_quantity": 4,
  "sold_quantity": 0,
  "picture_ids": [
    "553111-MLA20482692355_112015",
    "629425-MLA25446587248_032017"
  ],
  "seller_custom_field": null,
  "catalog_product_id": null,
  "attributes": [
    {
      "id": "EAN",
      "name": "EAN",
      "value_id": null,
      "value_name": "7794940000796"
    },
    {
      "id": "UPC",
      "name": "UPC",
      "value_id": null,
      "value_name": "7792931000015"
    }
  ]
}

Considerations:

  • • To view the attributes property in each variation, you should add the include_attributes=all parameter to the query URL.

Example

https://api.mercadolibre.com/items/MLA640992661?include_attributes=all

Add new variations

If a new variation of your already listed item becomes available in your stock, you will be able to add a new variation.
Example

curl -H 'Content-Type: application/json' -X POST https://api.mercadolibre.com/items/MLA658778048/variations?access_token=$ACCESS_TOKEN -d '{
    "attribute_combinations": [
       {
          "id": "COLOR",
          "value_id": "52035"
        }
    ],
    "price": 100,
    "available_quantity": 10,
    "sold_quantity": 0,
    "picture_ids": [
      "553111-MLA20482692355_112015"
    ]
  }'

Response

[
 {
   "id": 15092589430,
   "attribute_combinations": [
     {
       "id": "COLOR",
       "name": "Color",
       "value_id": "52028",
       "value_name": "Celeste Oscuro"
     }
   ],
   "price": 100,
   "available_quantity": 4,
   "sold_quantity": 0,
   "picture_ids": [
     "553111-MLA20482692355_112015",
     "629425-MLA25446587248_032017"
   ],
   "seller_custom_field": null,
   "catalog_product_id": null,
   "attributes": [
     {
       "id": "EAN",
       "name": "EAN",
       "value_id": null,
       "value_name": "7794940000796"
     },
     {
       "id": "UPC",
       "name": "UPC",
       "value_id": null,
       "value_name": "7792931000015"
     }
   ]
 },
 {
   "id": 15094538043,
   "attribute_combinations": [
     {
       "id": "COLOR",
       "name": "Color",
       "value_id": "52035",
       "value_name": "Violeta"
     }
   ],
   "price": 100,
   "available_quantity": 10,
   "sold_quantity": 0,
   "picture_ids": [
     "553111-MLA20482692355_112015"
   ],
   "seller_custom_field": null,
   "catalog_product_id": null,
   "attributes": []
 }
]

Well done! If you check the item, you will see the new variation listed.
Another way to add a variation is to make a PUT to the item, listing both the existing variations Ids and the variation to be created in the variations property.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
      "id": 15092589430    
    },
    {
      "id": "15092589427",
    },
    {
      "attribute_combinations": [
        {
          "id": "COLOR",
          "value_id": "52000"
        }
      ],
      "price": 100,
      "available_quantity": 4,
      "picture_ids": [
        "553111-MLA20482692355_112015"
      ]
    }
  ],
}'  

Change variations

Now that you have learned how to list and make variation queries, you may need to make changes so as to update stock and prices, add variations of your item, or change the value of some of the listed attributes.

Add or change item variation attributes

In some cases, you may want to add a new attribute to your variations.
Based on the Fan example, we have already shown you how to list a Fan with Color variations. Now, imagine that, in addition to Color variations, you want to add Voltage variations. To do that, you should make a PUT, as in the example below, sending all the variations and adding the Voltage attribute in the attribute_combinations field of each variation.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
      "id": 15092589430,
      "attribute_combinations": [
        {
          "id": "COLOR",
          "value_id": "52005"
        },
        {
          "id": "VOLTAGE",
          "value_id": "198812"
        }
      ]
    },
    {
      "id": 15093506680,
      "attribute_combinations": [
        {
          "id": "COLOR",
          "value_id": "52035"
        },
        {
          "id": "VOLTAGE",
          "value_id": "198813"
        }
      ]
    }
  ]
}' 

You may also want to change an attribute, which will result in a variation to your item.
Based on the Fan example, imagine that your Fan is not Blue, but Dark Sky-Blue. To make this change, you should make a PUT, as in the example below, sending the variation corresponding to the Blue color, and changing the value_name to Dark Sky-Blue.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048/variations/15092589430?access_token=$ACCESS_TOKEN  -d '{
      "attribute_combinations": [
        {
          "id": "COLOR",
          "value_id": "52028",
          "value_name": "Celeste Oscuro"
        }
      ]
    }

Response

[
 {
   "id": 15092589430,
   "attribute_combinations": [
     {
       "id": "COLOR",
       "name": "Color",
       "value_id": "52028",
       "value_name": "Celeste Oscuro"
     }
   ],
   "price": 100,
   "available_quantity": 4,
   "sold_quantity": 0,
   "picture_ids": [
     "553111-MLA20482692355_112015",
     "629425-MLA25446587248_032017"
   ],
   "seller_custom_field": null,
   "catalog_product_id": null,
   "attributes": [
     {
       "id": "EAN",
       "name": "EAN",
       "value_id": null,
       "value_name": "7794940000796"
     },
     {
       "id": "UPC",
       "name": "UPC",
       "value_id": null,
       "value_name": "7792931000015"
     }
   ]
 }
]

Add or change the typical attributes of each variation

Moreover, at some point you may want to add more attributes typical of one or several particular variations.
Follow the Fan example until each variation has the information contained in the bar code (EAN). Now imagine that, for some variations, we have information from another bar code -the UPC- and we want to add it.
To do so, we have two alternatives: to make a PUT, as in the example below, sending all the variations, but adding the attributes field to the variations to which we want to add the UPC attribute.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
      "id": "15092589430",
       "attributes": [{ "id": "EAN", "name": "EAN", "value_name": "7794940000796"}, 
{ "id": "UPC", "name": "UPC", "value_name": "7792931000015"}]
      }
  ],
}' 

Response

{
    "id": "MLA658778048",
    "site_id": "MLA",
    "title": "Item De Testeo",
    "subtitle": null,
    "seller_id": 247212006,
    "category_id": "MLA378496",
    "official_store_id": null,
    "price": 100,
    "base_price": 100,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 4,
    "available_quantity": 4,
    "sold_quantity": 0,
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-03-20T15:44:00.000Z",
    "stop_time": "2037-03-15T15:44:00.000Z",
    "end_time": "2037-03-15T15:44:00.000Z",
    "expiration_time": "2017-06-17T14:50:42.000Z",
    "condition": "not_specified",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
    "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "pictures": [
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": null,
        "dimensions": null,
        "tags": [],
        "logistic_type": "not_specified"
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 265953311,
        "comment": "",
        "address_line": "Test Address 123",
        "zip_code": "1414",
        "city": {
            "id": "",
            "name": "Palermo"
        },
        "state": {
            "id": "AR-C",
            "name": "Capital Federal"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": "",
        "longitude": "",
        "search_location": {
            "neighborhood": {
                "id": "TUxBQlBBTDI1MTVa",
                "name": "Palermo"
            },
            "city": {
                "id": "TUxBQ0NBUGZlZG1sYQ",
                "name": "Capital Federal"
            },
            "state": {
                "id": "TUxBUENBUGw3M2E1",
                "name": "Capital Federal"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": "",
        "longitude": ""
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "FAN_TYPE",
            "name": "Tipo de Ventilador",
            "value_id": "291719",
            "value_name": "De Techo",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "HEIGHT_ADJUSTABLE",
            "name": "Altura Regulable",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "LATERAL_OSCILLATION",
            "name": "Oscilación Lateral",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "REMOTE_CONTROL",
            "name": "Control Remoto",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "WITH_LIGHT",
            "name": "Con Luz",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "BRAND",
            "name": "Marca",
            "value_id": "86416",
            "value_name": "Eiffel",
            "attribute_group_id": "MAIN",
            "attribute_group_name": "Atributos Principales"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 15092589430,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52005",
                    "value_name": "Marrón"
                },
                {
                    "id": "VOLTAGE",
                    "name": "Voltaje",
                    "value_id": "198812",
                    "value_name": "110V/220V (Bivolt)"
                }
            ],
            "price": 100,
            "available_quantity": 4,
            "sold_quantity": 0,
            "picture_ids": [
                "553111-MLA20482692355_112015",
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": [
                {
                    "id": "EAN",
                    "name": "EAN",
                    "value_id": null,
                    "value_name": "7794940000796"
                },
                {
                    "id": "UPC",
                    "name": "UPC",
                    "value_id": null,
                    "value_name": "7792931000015"
                }
            ]
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "poor_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": "MLA-FANS",
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-03-20T15:44:01.000Z",
    "last_updated": "2017-03-29T14:51:54.627Z"
}

Or otherwise, to make a separate PUT to each variation, as in the example below.
Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048/variations/15092589430?access_token=$ACCESS_TOKEN  -d '{
    "attributes": [{ "id": "EAN", "name": "EAN", "value_name": "7794940000796"},
{ "id": "UPC", "name": "UPC", "value_name": "7793704000225"}]
  }'

Response

[
    {
        "id": 15092589430,
        "attribute_combinations": [
            {
                "id": "COLOR",
                "name": "Color",
                "value_id": "52005",
                "value_name": "Marrón"
            },
            {
                "id": "VOLTAGE",
                "name": "Voltaje",
                "value_id": "198812",
                "value_name": "110V/220V (Bivolt)"
            }
        ],
        "price": 100,
        "available_quantity": 4,
        "sold_quantity": 0,
        "picture_ids": [
            "553111-MLA20482692355_112015",
            "629425-MLA25446587248_032017"
        ],
        "seller_custom_field": null,
        "catalog_product_id": null,
        "attributes": [
            {
                "id": "EAN",
                "name": "EAN",
                "value_id": null,
                "value_name": "7794940000796"
            },
            {
                "id": "UPC",
                "name": "UPC",
                "value_id": null,
                "value_name": "7793704000225"
            }
        ]
    }
]

You may also want to change the value of a typical attribute of each variation. Imagine that you want to change the value of the EAN attribute of a particular variation. To do so, you should make a PUT, as in the example below, specifying the variation that you want to change. You should send all the attributes in the attributes field and the changed value_name field for the EAN attribute.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
       "id": "15092589430",
       "attributes": [{ "id": "EAN", "name": "EAN", "value_name": "7792931000015"},
{ "id": "UPC", "name": "UPC", "value_name": "7792931000015"}]
    }
  ],
}' 

Response

{
    "id": "MLA658778048",
    "site_id": "MLA",
    "title": "Item De Testeo",
    "subtitle": null,
    "seller_id": 247212006,
    "category_id": "MLA378496",
    "official_store_id": null,
    "price": 100,
    "base_price": 100,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 4,
    "available_quantity": 4,
    "sold_quantity": 0,
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-03-20T15:44:00.000Z",
    "stop_time": "2037-03-15T15:44:00.000Z",
    "end_time": "2037-03-15T15:44:00.000Z",
    "expiration_time": "2017-06-17T14:55:54.306Z",
    "condition": "not_specified",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
    "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "pictures": [
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": null,
        "dimensions": null,
        "tags": [],
        "logistic_type": "not_specified"
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 265953311,
        "comment": "",
        "address_line": "Test Address 123",
        "zip_code": "1414",
        "city": {
            "id": "",
            "name": "Palermo"
        },
        "state": {
            "id": "AR-C",
            "name": "Capital Federal"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": "",
        "longitude": "",
        "search_location": {
            "neighborhood": {
                "id": "TUxBQlBBTDI1MTVa",
                "name": "Palermo"
            },
            "city": {
                "id": "TUxBQ0NBUGZlZG1sYQ",
                "name": "Capital Federal"
            },
            "state": {
                "id": "TUxBUENBUGw3M2E1",
                "name": "Capital Federal"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": "",
        "longitude": ""
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "FAN_TYPE",
            "name": "Tipo de Ventilador",
            "value_id": "291719",
            "value_name": "De Techo",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "HEIGHT_ADJUSTABLE",
            "name": "Altura Regulable",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "LATERAL_OSCILLATION",
            "name": "Oscilación Lateral",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "REMOTE_CONTROL",
            "name": "Control Remoto",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "WITH_LIGHT",
            "name": "Con Luz",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "BRAND",
            "name": "Marca",
            "value_id": "86416",
            "value_name": "Eiffel",
            "attribute_group_id": "MAIN",
            "attribute_group_name": "Atributos Principales"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 15092589430,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52005",
                    "value_name": "Marrón"
                },
                {
                    "id": "VOLTAGE",
                    "name": "Voltaje",
                    "value_id": "198812",
                    "value_name": "110V/220V (Bivolt)"
                }
            ],
            "price": 100,
            "available_quantity": 4,
            "sold_quantity": 0,
            "picture_ids": [
                "553111-MLA20482692355_112015",
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": [
                {
                    "id": "EAN",
                    "name": "EAN",
                    "value_id": null,
                    "value_name": "7792931000015"
                },
                {
                    "id": "UPC",
                    "name": "UPC",
                    "value_id": null,
                    "value_name": "7792931000015"
                }
            ]
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "poor_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": "MLA-FANS",
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-03-20T15:44:01.000Z",
    "last_updated": "2017-03-29T14:55:54.337Z"
}

Change pictures

If you want to add a picture to an existing variation, you should send its URL both in the item’s general picture list and in the variation picture list. Meanwhile, as the item resource will be updated, you should send the IDs of every existing variation in the Json. Otherwise, the API will understand that you do not want to keep them in the listing.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
      "id": 15092589430,
      "picture_ids": [
        "629425-MLA25446587248_032017"
      ]
    }
  ],
}' 

Response

{
    "id": "MLA658778048",
    "site_id": "MLA",
    "title": "Item De Testeo",
    "subtitle": null,
    "seller_id": 247212006,
    "category_id": "MLA378496",
    "official_store_id": null,
    "price": 100,
    "base_price": 100,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 4,
    "available_quantity": 4,
    "sold_quantity": 0,
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-03-20T15:44:00.000Z",
    "stop_time": "2037-03-15T15:44:00.000Z",
    "end_time": "2037-03-15T15:44:00.000Z",
    "expiration_time": "2017-06-17T14:57:57.371Z",
    "condition": "not_specified",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
    "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "pictures": [
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": null,
        "dimensions": null,
        "tags": [],
        "logistic_type": "not_specified"
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 265953311,
        "comment": "",
        "address_line": "Test Address 123",
        "zip_code": "1414",
        "city": {
            "id": "",
            "name": "Palermo"
        },
        "state": {
            "id": "AR-C",
            "name": "Capital Federal"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": "",
        "longitude": "",
        "search_location": {
            "neighborhood": {
                "id": "TUxBQlBBTDI1MTVa",
                "name": "Palermo"
            },
            "city": {
                "id": "TUxBQ0NBUGZlZG1sYQ",
                "name": "Capital Federal"
            },
            "state": {
                "id": "TUxBUENBUGw3M2E1",
                "name": "Capital Federal"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": "",
        "longitude": ""
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "FAN_TYPE",
            "name": "Tipo de Ventilador",
            "value_id": "291719",
            "value_name": "De Techo",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "HEIGHT_ADJUSTABLE",
            "name": "Altura Regulable",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "LATERAL_OSCILLATION",
            "name": "Oscilación Lateral",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "REMOTE_CONTROL",
            "name": "Control Remoto",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "WITH_LIGHT",
            "name": "Con Luz",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "BRAND",
            "name": "Marca",
            "value_id": "86416",
            "value_name": "Eiffel",
            "attribute_group_id": "MAIN",
            "attribute_group_name": "Atributos Principales"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 15092589430,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52005",
                    "value_name": "Marrón"
                },
                {
                    "id": "VOLTAGE",
                    "name": "Voltaje",
                    "value_id": "198812",
                    "value_name": "110V/220V (Bivolt)"
                }
            ],
            "price": 100,
            "available_quantity": 4,
            "sold_quantity": 0,
            "picture_ids": [
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": [
                {
                    "id": "EAN",
                    "name": "EAN",
                    "value_id": null,
                    "value_name": "7792931000015"
                },
                {
                    "id": "UPC",
                    "name": "UPC",
                    "value_id": null,
                    "value_name": "7792931000015"
                }
            ]
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "poor_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": "MLA-FANS",
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-03-20T15:44:01.000Z",
    "last_updated": "2017-03-29T14:57:57.397Z"
}

Note: If you don’t want to keep the previous pictures, don’t send the Json and they will be automatically discarded.

Change price

If you want to change the price of an item with variations, you should do it one by one.
To do so, just make a PUT to the item API, including the variations property, listing by Id and adding the new price.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
      "id": 15092589430,
      "price": 300
  ],
}'

Response

{
    "id": "MLA658778048",
    "site_id": "MLA",
    "title": "Item De Testeo",
    "subtitle": null,
    "seller_id": 247212006,
    "category_id": "MLA378496",
    "official_store_id": null,
    "price": 300,
    "base_price": 300,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 8,
    "available_quantity": 8,
    "sold_quantity": 0,
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-03-20T15:44:00.000Z",
    "stop_time": "2037-03-15T15:44:00.000Z",
    "end_time": "2037-03-15T15:44:00.000Z",
    "expiration_time": "2017-06-17T15:03:02.581Z",
    "condition": "not_specified",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
    "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "pictures": [
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": null,
        "dimensions": null,
        "tags": [],
        "logistic_type": "not_specified"
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 265953311,
        "comment": "",
        "address_line": "Test Address 123",
        "zip_code": "1414",
        "city": {
            "id": "",
            "name": "Palermo"
        },
        "state": {
            "id": "AR-C",
            "name": "Capital Federal"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": "",
        "longitude": "",
        "search_location": {
            "neighborhood": {
                "id": "TUxBQlBBTDI1MTVa",
                "name": "Palermo"
            },
            "city": {
                "id": "TUxBQ0NBUGZlZG1sYQ",
                "name": "Capital Federal"
            },
            "state": {
                "id": "TUxBUENBUGw3M2E1",
                "name": "Capital Federal"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": "",
        "longitude": ""
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "FAN_TYPE",
            "name": "Tipo de Ventilador",
            "value_id": "291719",
            "value_name": "De Techo",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "HEIGHT_ADJUSTABLE",
            "name": "Altura Regulable",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "LATERAL_OSCILLATION",
            "name": "Oscilación Lateral",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "REMOTE_CONTROL",
            "name": "Control Remoto",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "WITH_LIGHT",
            "name": "Con Luz",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "BRAND",
            "name": "Marca",
            "value_id": "86416",
            "value_name": "Eiffel",
            "attribute_group_id": "MAIN",
            "attribute_group_name": "Atributos Principales"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 15092589430,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52005",
                    "value_name": "Marrón"
                },
                {
                    "id": "VOLTAGE",
                    "name": "Voltaje",
                    "value_id": "198812",
                    "value_name": "110V/220V (Bivolt)"
                }
            ],
            "price": 300,
            "available_quantity": 8,
            "sold_quantity": 0,
            "picture_ids": [
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": [
                {
                    "id": "EAN",
                    "name": "EAN",
                    "value_id": null,
                    "value_name": "7792931000015"
                },
                {
                    "id": "UPC",
                    "name": "UPC",
                    "value_id": null,
                    "value_name": "7792931000015"
                }
            ]
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "poor_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": "MLA-FANS",
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-03-20T15:44:01.000Z",
    "last_updated": "2017-03-29T15:03:02.744Z"
}

Change stock

As with price changes, you just have to make a PUT to the item API, including the variations property, listing each of them with their relevant id, and the new available_quantity for those variations which stock you want to change.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
      "id": 15092589430,
      "available_quantity": 10
    }
  ],
}'

Response

{
    "id": "MLA658778048",
    "site_id": "MLA",
    "title": "Item De Testeo",
    "subtitle": null,
    "seller_id": 247212006,
    "category_id": "MLA378496",
    "official_store_id": null,
    "price": 100,
    "base_price": 100,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 10,
    "available_quantity": 10,
    "sold_quantity": 0,
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-03-20T15:44:00.000Z",
    "stop_time": "2037-03-15T15:44:00.000Z",
    "end_time": "2037-03-15T15:44:00.000Z",
    "expiration_time": "2017-06-17T15:00:27.592Z",
    "condition": "not_specified",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
    "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "pictures": [
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": null,
        "dimensions": null,
        "tags": [],
        "logistic_type": "not_specified"
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 265953311,
        "comment": "",
        "address_line": "Test Address 123",
        "zip_code": "1414",
        "city": {
            "id": "",
            "name": "Palermo"
        },
        "state": {
            "id": "AR-C",
            "name": "Capital Federal"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": "",
        "longitude": "",
        "search_location": {
            "neighborhood": {
                "id": "TUxBQlBBTDI1MTVa",
                "name": "Palermo"
            },
            "city": {
                "id": "TUxBQ0NBUGZlZG1sYQ",
                "name": "Capital Federal"
            },
            "state": {
                "id": "TUxBUENBUGw3M2E1",
                "name": "Capital Federal"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": "",
        "longitude": ""
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "FAN_TYPE",
            "name": "Tipo de Ventilador",
            "value_id": "291719",
            "value_name": "De Techo",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "HEIGHT_ADJUSTABLE",
            "name": "Altura Regulable",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "LATERAL_OSCILLATION",
            "name": "Oscilación Lateral",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "REMOTE_CONTROL",
            "name": "Control Remoto",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "WITH_LIGHT",
            "name": "Con Luz",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "BRAND",
            "name": "Marca",
            "value_id": "86416",
            "value_name": "Eiffel",
            "attribute_group_id": "MAIN",
            "attribute_group_name": "Atributos Principales"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 15092589430,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52005",
                    "value_name": "Marrón"
                },
                {
                    "id": "VOLTAGE",
                    "name": "Voltaje",
                    "value_id": "198812",
                    "value_name": "110V/220V (Bivolt)"
                }
            ],
            "price": 100,
            "available_quantity": 10,
            "sold_quantity": 0,
            "picture_ids": [
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": [
                {
                    "id": "EAN",
                    "name": "EAN",
                    "value_id": null,
                    "value_name": "7792931000015"
                },
                {
                    "id": "UPC",
                    "name": "UPC",
                    "value_id": null,
                    "value_name": "7792931000015"
                }
            ]
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "poor_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": "MLA-FANS",
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-03-20T15:44:01.000Z",
    "last_updated": "2017-03-29T15:00:27.650Z"
}

Working with images in variations

To view the different images of each variation, take into account that the determinant attribute is that with tag defines_picture: true.
All the variations that share the same value in the attribute with tag define_picture should ALWAYS have the same images.
Example

  • red/32 and red/28 should have the same images
  • red/32 and green/32 should have different images

That is:

  • All the variations that share the same value in the attribute with tag “defines_picture” should have the same images.
  • All the variations with a different value in the attribute with tag “defines_picture” should have different images.
  • All the variations should have an associated image.
  • Based on the above, you will also be able to have thumbnails properly displayed, as shown in the screenshot below:

Moditify images

If you want to add a picture to an existing variation, you should send its URL or picture_id –if the picture is already uploaded– both on the item general picture list and on the variation picture list.
Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
  "pictures": [{
      "source": "http://www.apertura.com/export/sites/revistaap/img/Tecnologia/Logo_ML_NUEVO.jpg_33442984.jpg"
    },
    {
      "source": "http://static.ellahoy.es/ellahoy/fotogallery/1200X0/371265/falda-plisada-rosa.jpg"
    },
    {
      "id": "553111-MLA20482692355_112015"
    },
    {
      "id": "629425-MLA25446587248_032017"
    }
  ],
  "variations": [{
      "id": 18200178910,
      "picture_ids": [
        "http://static.ellahoy.es/ellahoy/fotogallery/1200X0/371265/falda-plisada-rosa.jpg",
        "553111-MLA20482692355_112015"
      ]
    },
    {
      "id": 18200178913,
      "picture_ids": [
        "http://www.apertura.com/export/sites/revistaap/img/Tecnologia/Logo_ML_NUEVO.jpg_33442984.jpg",
        "629425-MLA25446587248_032017"
      ]
    }
  ]
}'

Response

{
    "id": "MLA689372871",
    "site_id": "MLA",
    "title": "Test Item - No Ofertar",
    "subtitle": null,
    "seller_id": 235461680,
    "category_id": "MLA374515",
    "official_store_id": null,
    "price": 200,
    "base_price": 200,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 2,
    "available_quantity": 2,
    "sold_quantity": 0,
    "sale_terms": [],
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-10-26T13:03:44.000Z",
    "historical_start_time": "2017-10-26T13:03:44.000Z",
    "stop_time": "2037-10-21T13:03:44.000Z",
    "end_time": "2037-10-21T13:03:44.000Z",
    "expiration_time": "2018-01-14T16:32:57.725Z",
    "condition": "new",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-689372871-test-item-no-ofertar-_JM",
    "thumbnail": "http://mla-s1-p.mlstatic.com/942947-MLA26244780225_102017-I.jpg",
    "secure_thumbnail": "https://mla-s1-p.mlstatic.com/942947-MLA26244780225_102017-I.jpg",
    "pictures": [
        {
            "id": "942947-MLA26244780225_102017",
            "url": "http://mla-s1-p.mlstatic.com/942947-MLA26244780225_102017-O.jpg",
            "secure_url": "https://mla-s1-p.mlstatic.com/942947-MLA26244780225_102017-O.jpg",
            "size": "500x228",
            "max_size": "625x285",
            "quality": ""
        },
        {
            "id": "837548-MLA26244864461_102017",
            "url": "http://www.mercadolibre.com/jm/img?s=STC&v=O&f=proccesing_image_es.jpg",
            "secure_url": "https://www.mercadolibre.com/jm/img?s=STC&v=O&f=proccesing_image_es.jpg",
            "size": "500x500",
            "max_size": "500x500",
            "quality": ""
        },
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [
        {
            "id": "MLA689372871-1476963486"
        }
    ],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": [],
        "dimensions": null,
        "tags": [
            "me2_available"
        ],
        "logistic_type": "not_specified",
        "store_pick_up": false
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 206175834,
        "comment": "",
        "address_line": "sssss 111",
        "zip_code": "5000",
        "city": {
            "id": "",
            "name": "Cordoba"
        },
        "state": {
            "id": "AR-X",
            "name": "Córdoba"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": -32.8224655,
        "longitude": -63.8666332,
        "search_location": {
            "neighborhood": {
                "id": "",
                "name": ""
            },
            "city": {
                "id": "TUxBQ0NBUGNiZGQx",
                "name": "Córdoba"
            },
            "state": {
                "id": "TUxBUENPUmFkZGIw",
                "name": "Córdoba"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": -32.8224655,
        "longitude": -63.8666332
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "GENDER",
            "name": "Género",
            "value_id": "female",
            "value_name": "Mujer",
            "value_struct": null,
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "Season",
            "name": "Season",
            "value_id": "Season-All-Season",
            "value_name": "All-Season",
            "value_struct": null,
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 18200178910,
            "attribute_combinations": [
                {
                    "id": "83000",
                    "name": "Color Primario",
                    "value_id": "92028",
                    "value_name": "Blanco",
                    "value_struct": null
                },
                {
                    "id": "93000",
                    "name": "Talle",
                    "value_id": "101994",
                    "value_name": "S",
                    "value_struct": null
                }
            ],
            "price": 200,
            "available_quantity": 1,
            "sold_quantity": 0,
            "sale_terms": [],
            "picture_ids": [
                "837548-MLA26244864461_102017",
                "553111-MLA20482692355_112015"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": []
        },
        {
            "id": 18200178913,
            "attribute_combinations": [
                {
                    "id": "83000",
                    "name": "Color Primario",
                    "value_id": "91994",
                    "value_name": "Rosa",
                    "value_struct": null
                },
                {
                    "id": "93000",
                    "name": "Talle",
                    "value_id": "101995",
                    "value_name": "M",
                    "value_struct": null
                }
            ],
            "price": 200,
            "available_quantity": 1,
            "sold_quantity": 0,
            "sale_terms": [],
            "picture_ids": [
                "942947-MLA26244780225_102017",
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": []
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "test_item",
        "only_html_description",
        "good_quality_thumbnail",
        "unknown_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": null,
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-10-26T13:03:44.000Z",
    "last_updated": "2017-10-26T16:32:57.945Z",
    "total_listing_fee": null
}

Reactivate variations

If your listing is paused for being out of stock and you want to reactivate it, but only with the variations currently in stock, you can send the available quantity of each item.
Bear in mind that the item will only have the variations sent in the last PUT.

Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
    {
      "id": 15092589430,
      "price": 350,
      "available_quantity": 8
    "status": "active"
    }
  ]
}'

Response

{
    "id": "MLA658778048",
    "site_id": "MLA",
    "title": "Item De Testeo",
    "subtitle": null,
    "seller_id": 247212006,
    "category_id": "MLA378496",
    "official_store_id": null,
    "price": 350,
    "base_price": 350,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 8,
    "available_quantity": 8,
    "sold_quantity": 0,
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-03-20T15:44:00.000Z",
    "stop_time": "2037-03-15T15:44:00.000Z",
    "end_time": "2037-03-15T15:44:00.000Z",
    "expiration_time": "2017-06-17T15:01:21.418Z",
    "condition": "not_specified",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
    "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "pictures": [
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": null,
        "dimensions": null,
        "tags": [],
        "logistic_type": "not_specified"
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 265953311,
        "comment": "",
        "address_line": "Test Address 123",
        "zip_code": "1414",
        "city": {
            "id": "",
            "name": "Palermo"
        },
        "state": {
            "id": "AR-C",
            "name": "Capital Federal"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": "",
        "longitude": "",
        "search_location": {
            "neighborhood": {
                "id": "TUxBQlBBTDI1MTVa",
                "name": "Palermo"
            },
            "city": {
                "id": "TUxBQ0NBUGZlZG1sYQ",
                "name": "Capital Federal"
            },
            "state": {
                "id": "TUxBUENBUGw3M2E1",
                "name": "Capital Federal"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": "",
        "longitude": ""
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "FAN_TYPE",
            "name": "Tipo de Ventilador",
            "value_id": "291719",
            "value_name": "De Techo",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "HEIGHT_ADJUSTABLE",
            "name": "Altura Regulable",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "LATERAL_OSCILLATION",
            "name": "Oscilación Lateral",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "REMOTE_CONTROL",
            "name": "Control Remoto",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "WITH_LIGHT",
            "name": "Con Luz",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "BRAND",
            "name": "Marca",
            "value_id": "86416",
            "value_name": "Eiffel",
            "attribute_group_id": "MAIN",
            "attribute_group_name": "Atributos Principales"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 15092589430,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52005",
                    "value_name": "Marrón"
                },
                {
                    "id": "VOLTAGE",
                    "name": "Voltaje",
                    "value_id": "198812",
                    "value_name": "110V/220V (Bivolt)"
                }
            ],
            "price": 350,
            "available_quantity": 8,
            "sold_quantity": 0,
            "picture_ids": [
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": [
                {
                    "id": "EAN",
                    "name": "EAN",
                    "value_id": null,
                    "value_name": "7792931000015"
                },
                {
                    "id": "UPC",
                    "name": "UPC",
                    "value_id": null,
                    "value_name": "7792931000015"
                }
            ]
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "poor_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": "MLA-FANS",
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-03-20T15:44:01.000Z",
    "last_updated": "2017-03-29T15:01:21.506Z"
}

To reactivate a variation there are 2 possibilities:

1) Send in variations the id of the variation and “state”: “active”.

PUT https://api.mercadolibre.com/items/{item_id}
 { 
"variations":[
{
  "id": 16683296031,    -> Variación reactivada
    "status":"active"
},
{
  "id": 16683258955   -> Variación existente para mantenerla activa.
}
]
}

2) In a new variation, sending the same attributes, with the same values in attributes_combinations as those of a previously deleted variation, will activate the same deleted variation, keeping its ID.

Delete variations

If you want to delete a variation, you can do so as shown in the example below.

Example

curl -X DELETE 'https://api.mercadolibre.com/items/MLA599099879/variations/10449631060?access_token=¢ACCESS_TOKEN

Response

{
    "id": "MLA658778048",
    "site_id": "MLA",
    "title": "Item De Testeo",
    "subtitle": null,
    "seller_id": 247212006,
    "category_id": "MLA378496",
    "official_store_id": null,
    "price": 300,
    "base_price": 300,
    "original_price": null,
    "currency_id": "ARS",
    "initial_quantity": 8,
    "available_quantity": 8,
    "sold_quantity": 0,
    "buying_mode": "buy_it_now",
    "listing_type_id": "gold_special",
    "start_time": "2017-03-20T15:44:00.000Z",
    "stop_time": "2037-03-15T15:44:00.000Z",
    "end_time": "2037-03-15T15:44:00.000Z",
    "expiration_time": "2017-06-17T15:03:02.000Z",
    "condition": "not_specified",
    "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
    "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
    "pictures": [
        {
            "id": "553111-MLA20482692355_112015",
            "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
            "size": "320x320",
            "max_size": "320x320",
            "quality": ""
        },
        {
            "id": "629425-MLA25446587248_032017",
            "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
            "size": "384x500",
            "max_size": "922x1200",
            "quality": ""
        }
    ],
    "video_id": null,
    "descriptions": [],
    "accepts_mercadopago": true,
    "non_mercado_pago_payment_methods": [],
    "shipping": {
        "mode": "not_specified",
        "local_pick_up": false,
        "free_shipping": false,
        "methods": null,
        "dimensions": null,
        "tags": [],
        "logistic_type": "not_specified"
    },
    "international_delivery_mode": "none",
    "seller_address": {
        "id": 265953311,
        "comment": "",
        "address_line": "Test Address 123",
        "zip_code": "1414",
        "city": {
            "id": "",
            "name": "Palermo"
        },
        "state": {
            "id": "AR-C",
            "name": "Capital Federal"
        },
        "country": {
            "id": "AR",
            "name": "Argentina"
        },
        "latitude": "",
        "longitude": "",
        "search_location": {
            "neighborhood": {
                "id": "TUxBQlBBTDI1MTVa",
                "name": "Palermo"
            },
            "city": {
                "id": "TUxBQ0NBUGZlZG1sYQ",
                "name": "Capital Federal"
            },
            "state": {
                "id": "TUxBUENBUGw3M2E1",
                "name": "Capital Federal"
            }
        }
    },
    "seller_contact": null,
    "location": {},
    "geolocation": {
        "latitude": "",
        "longitude": ""
    },
    "coverage_areas": [],
    "attributes": [
        {
            "id": "FAN_TYPE",
            "name": "Tipo de Ventilador",
            "value_id": "291719",
            "value_name": "De Techo",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "HEIGHT_ADJUSTABLE",
            "name": "Altura Regulable",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "LATERAL_OSCILLATION",
            "name": "Oscilación Lateral",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "REMOTE_CONTROL",
            "name": "Control Remoto",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "WITH_LIGHT",
            "name": "Con Luz",
            "value_id": "242084",
            "value_name": "No",
            "attribute_group_id": "DFLT",
            "attribute_group_name": "Otros"
        },
        {
            "id": "BRAND",
            "name": "Marca",
            "value_id": "86416",
            "value_name": "Eiffel",
            "attribute_group_id": "MAIN",
            "attribute_group_name": "Atributos Principales"
        }
    ],
    "warnings": [],
    "listing_source": "",
    "variations": [
        {
            "id": 15092589430,
            "attribute_combinations": [
                {
                    "id": "COLOR",
                    "name": "Color",
                    "value_id": "52005",
                    "value_name": "Marrón"
                },
                {
                    "id": "VOLTAGE",
                    "name": "Voltaje",
                    "value_id": "198812",
                    "value_name": "110V/220V (Bivolt)"
                }
            ],
            "price": 300,
            "available_quantity": 8,
            "sold_quantity": 0,
            "picture_ids": [
                "629425-MLA25446587248_032017"
            ],
            "seller_custom_field": null,
            "catalog_product_id": null,
            "attributes": [
                {
                    "id": "EAN",
                    "name": "EAN",
                    "value_id": null,
                    "value_name": "7792931000015"
                },
                {
                    "id": "UPC",
                    "name": "UPC",
                    "value_id": null,
                    "value_name": "7792931000015"
                }
            ]
        }
    ],
    "status": "active",
    "sub_status": [],
    "tags": [
        "poor_quality_picture",
        "immediate_payment"
    ],
    "warranty": null,
    "catalog_product_id": null,
    "domain_id": "MLA-FANS",
    "seller_custom_field": null,
    "parent_item_id": null,
    "differential_pricing": null,
    "deal_ids": [],
    "automatic_relist": false,
    "date_created": "2017-03-20T15:44:01.000Z",
    "last_updated": "2017-03-29T15:04:20.999Z"
}

Alternatively you can delete variations sending a PUT to the item API with the variations property, listing only the Ids of those variations that you want to keep.

Example

curl -H 'Content-Type: application/json' -X DELETE https://api.mercadolibre.com/items/MLA658778048/variations/15092589430?access_token=$ACCESS_TOKEN

Customized variation

If for a large number of categories there are attributes identified to vary your item, you may need to generate customized variations that are not defined in the attribute by category API.
For example, a mobile phone case seller may want to vary items by “Design” so as to offer the Flamingo, Crocodile and Owl variations in the same listing. As the category does not have this attribute defined, you can send the customized variation in the variation’s attribute_combinations.

Considerations:

  • To list an item with customized variations, make sure that the attributes in the category where you want to list are different from those that you want to add.
  • Besides, bear in mind that you can only vary your item with a single customized variation.
  • Customized variations should be in variations, under the attribute_combinations section.

List and change items with customized variations

To add or change customized attributes, you should do the same as for those defined in the attribute API by category: you just have to specify the attribute name and the value_name of the value to be added. Remember to be consistent with the name defined for the attribute, and change its value_name just like you would do it with any other.
Buyers will view the attribute name in the VIP. For the above example, we will use “Design” name. Once you created the customized variation, the VIP will look like this:


Example

curl -H 'Content-Type: application/json' -X PUT https://api.mercadolibre.com/items/MLA658778048?access_token=$ACCESS_TOKEN  -d '{
"variations": [
{
	"attribute_combinations": [
	      {
	        "name": "Diseño",
	        "value_name": "Buho"
	      }
	    ],
	    "price": 100,
	    "available_quantity": 10
    },
    {
	"attribute_combinations": [
	      {
	        "name": "Diseño",
	        "value_name": "Flamenco"
	      }
	    ],
	    "price": 100,
	    "available_quantity": 10
    },
    {
	"attribute_combinations": [
	      {
	        "name": "Diseño",
	        "value_name": "Cocodrilo"
	      }
	    ],
	    "price": 100,
	    "available_quantity": 10
    }
  ]
}' 

Response

{
  "id": "MLA658778048",
  "site_id": "MLA",
  "title": "Item De Testeo",
  "subtitle": null,
  "seller_id": 247212006,
  "category_id": "MLA378496",
  "official_store_id": null,
  "price": 100,
  "base_price": 100,
  "original_price": null,
  "currency_id": "ARS",
  "initial_quantity": 30,
  "available_quantity": 30,
  "sold_quantity": 0,
  "buying_mode": "buy_it_now",
  "listing_type_id": "gold_special",
  "start_time": "2017-03-20T15:44:00.000Z",
  "stop_time": "2037-03-15T15:44:00.000Z",
  "end_time": "2037-03-15T15:44:00.000Z",
  "expiration_time": "2017-06-26T16:55:52.935Z",
  "condition": "not_specified",
  "permalink": "http://articulo.mercadolibre.com.ar/MLA-658778048-item-de-testeo-_JM",
  "thumbnail": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
  "secure_thumbnail": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-I.jpg",
  "pictures": [
    {
      "id": "553111-MLA20482692355_112015",
      "url": "http://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
      "secure_url": "https://mla-s2-p.mlstatic.com/553111-MLA20482692355_112015-O.jpg",
      "size": "320x320",
      "max_size": "320x320",
      "quality": ""
    },
    {
      "id": "629425-MLA25446587248_032017",
      "url": "http://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
      "secure_url": "https://mla-s2-p.mlstatic.com/629425-MLA25446587248_032017-O.jpg",
      "size": "384x500",
      "max_size": "922x1200",
      "quality": ""
    }
  ],
  "video_id": null,
  "descriptions": [],
  "accepts_mercadopago": true,
  "non_mercado_pago_payment_methods": [],
  "shipping": {
    "mode": "not_specified",
    "local_pick_up": false,
    "free_shipping": false,
    "methods": null,
    "dimensions": null,
    "tags": [],
    "logistic_type": "not_specified"
  },
  "international_delivery_mode": "none",
  "seller_address": {
    "id": 265953311,
    "comment": "",
    "address_line": "Test Address 123",
    "zip_code": "1414",
    "city": {
      "id": "",
      "name": "Palermo"
    },
    "state": {
      "id": "AR-C",
      "name": "Capital Federal"
    },
    "country": {
      "id": "AR",
      "name": "Argentina"
    },
    "latitude": "",
    "longitude": "",
    "search_location": {
      "neighborhood": {
        "id": "TUxBQlBBTDI1MTVa",
        "name": "Palermo"
      },
      "city": {
        "id": "TUxBQ0NBUGZlZG1sYQ",
        "name": "Capital Federal"
      },
      "state": {
        "id": "TUxBUENBUGw3M2E1",
        "name": "Capital Federal"
      }
    }
  },
  "seller_contact": null,
  "location": {},
  "geolocation": {
    "latitude": "",
    "longitude": ""
  },
  "coverage_areas": [],
  "attributes": [
    {
      "id": "FAN_TYPE",
      "name": "Tipo de Ventilador",
      "value_id": "291719",
      "value_name": "De Techo",
      "attribute_group_id": "DFLT",
      "attribute_group_name": "Otros"
    },
    {
      "id": "HEIGHT_ADJUSTABLE",
      "name": "Altura Regulable",
      "value_id": "242084",
      "value_name": "No",
      "attribute_group_id": "DFLT",
      "attribute_group_name": "Otros"
    },
    {
      "id": "REMOTE_CONTROL",
      "name": "Control Remoto",
      "value_id": "242084",
      "value_name": "No",
      "attribute_group_id": "DFLT",
      "attribute_group_name": "Otros"
    },
    {
      "id": "WITH_LIGHT",
      "name": "Con Luz",
      "value_id": "242084",
      "value_name": "No",
      "attribute_group_id": "DFLT",
      "attribute_group_name": "Otros"
    },
    {
      "id": "BRAND",
      "name": "Marca",
      "value_id": "86416",
      "value_name": "Eiffel",
      "attribute_group_id": "MAIN",
      "attribute_group_name": "Atributos Principales"
    }
  ],
  "warnings": [],
  "listing_source": "",
  "variations": [
    {
      "id": 15311871917,
      "attribute_combinations": [
        {
          "id": null,
          "name": "Diseño",
          "value_id": null,
          "value_name": "Buho"
        }
      ],
      "price": 100,
      "available_quantity": 10,
      "sold_quantity": 0,
      "picture_ids": [],
      "seller_custom_field": null,
      "catalog_product_id": null,
      "attributes": []
    },
    {
      "id": 15313572235,
      "attribute_combinations": [
        {
          "id": null,
          "name": "Diseño",
          "value_id": null,
          "value_name": "Flamenco"
        }
      ],
      "price": 100,
      "available_quantity": 10,
      "sold_quantity": 0,
      "picture_ids": [],
      "seller_custom_field": null,
      "catalog_product_id": null,
      "attributes": []
    },
    {
      "id": 15313572237,
      "attribute_combinations": [
        {
          "id": null,
          "name": "Diseño",
          "value_id": null,
          "value_name": "Cocodrilo"
        }
      ],
      "price": 100,
      "available_quantity": 10,
      "sold_quantity": 0,
      "picture_ids": [],
      "seller_custom_field": null,
      "catalog_product_id": null,
      "attributes": []
    }
  ],
  "status": "active",
  "sub_status": [],
  "tags": [
    "poor_quality_picture",
    "immediate_payment"
  ],
  "warranty": null,
  "catalog_product_id": null,
  "domain_id": "MLA-FANS",
  "seller_custom_field": null,
  "parent_item_id": null,
  "differential_pricing": null,
  "deal_ids": [],
  "automatic_relist": false,
  "date_created": "2017-03-20T15:44:01.000Z",
  "last_updated": "2017-04-07T16:55:52.996Z"
}

Well done! Now that you learned the purpose of variations, you will no longer need to repeat information among items which only difference is this attribute. We encourage you to implement them.

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