perform the calculation.

Similarities and differences to other GS1 identifiers

Both the GLN and International Article Number also known as European Article Number or EAN share a common structure made of a 12-digit GS1 Company Prefix and Unique identifier followed by a 1-digit GS1 Check Digit. This means an IAN/EAN and a GLN can overlap in the identifiers used. This is why in most B2B standards like ASC X12

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