A list of name/value pairs that uniquely identify the variation within the listing. All variations specify the same set of names, and each variation provides a unique combination of values for those names. For example, if the items vary by color and size, then every variation specifies Color and Size as names, and no two variations can specify the same combination of color and size values. Use this information to identify a variation of interest when you communicate with the seller.
If your application supports PlaceOffer (in the Trading API), you use this information to uniquely identify the variation that you want to purchase.
See the
Field Index to learn which calls use VariationSpecifics.