GTIN
Global Trade Item Number - A umbrella term for product identification codes including UPC, EAN, and ISBN. GTINs are required for creating new listings and help Amazon match products across its global marketplaces.
Related Terms
UPC
Universal Product Code - A 12-digit barcode standard used in North America for product identification. Sellers need UPCs (from GS1) to create new product listings on Amazon, though exemptions exist for some private label products.
EAN
European Article Number - A 13-digit barcode standard used internationally for product identification. Similar to UPC but used primarily outside North America. Amazon accepts both UPCs and EANs for product listing creation.