Sellers are encouraged to supply product identifiers as item specifics whenever these identifiers are available for their products. Refer to Structured Data - Product Identifiers for additional information.

Valid types of product identifiers in the Item.ItemSpecifics.NameValueList.Name field are:

For any Item.ItemSpecifics.NameValueList.Name, the Item.ItemSpecifics.NameValueList.Value field must comply with the following guidelines to avoid an error condition:

  • The EAN must comply with the GTIN-13 standard.
  • The ISBN must comply with the ISBN-10 or ISBN-13 standard.
  • The JAN must comply with the GTIN-13 standard.
  • The UPC must comply with the GTIN-12 or UPC-A standard.
  • When identifying a product with BrandMPN:

Multiple-variation listings

For listings that have multiple variations:

Refer to Product identifiers for additional information.