What is a GTIN?
GTIN stands for Global Trade Identification Number. It is the coding structure that identifies a product. The GTIN-12 of a product is the unique 12 digit code shown beneath the bar code. It is also commonly referred to as a bar code number, UPC number or EAN number.
The Global Trade Item Number (GTIN) can be used by a company to uniquely identify all of its trade items. GS1 defines trade items as products or services that are priced, ordered or invoiced at any point in the supply chain.