Identifier defined and used by a seller to identify an item. The seller can use a SKU to identify one item or use the same SKU for multiple items. Preferable to ApplicationData for SKUs and inventory tracking. Different sellers can use the same SKUs. This element can be used by sellers to track complex flows of products and information. This element preserves a SKU, enabling a seller to obtain it before and after a transaction is created.
See the
Field Index to learn which calls use SKU.