At selecdoo, the GTIN (Global Trade Item Number) or EAN (European Article Number) refers to a standardized product identification number that is used worldwide to uniquely mark trade items. In affiliate marketing, GTINs/EANs are used to precisely identify and match products. They are similar to an SKU (Stock Keeping Unit) but differ in that GTIN/EANs are internationally standardized and therefore usable across platforms.

In the context of product data feeds used in affiliate marketing, GTINs/EANs enable consistent and accurate product matching. This makes automated processing easier, helps align product information, and prevents duplicates. GTIN/EAN numbers usually consist of 13 digits (EAN-13) and can be found on product packaging or in product data feeds.

At selecdoo, the use of GTIN/EAN is recommended to improve the quality and accuracy of product data and to boost the performance of affiliate campaigns. This unique identification supports advertisers and publishers in promoting and tracking products more efficiently.