BR-CO-26

Explanation

EN 16931 requires that the buyer can identify the seller automatically and unambiguously, separately from the identifiers tax law requires. Any one of these is enough: a seller identifier (such as a GLN or the supplier number the buyer assigned), a registration number such as a company register number, or the seller's VAT ID. A tax registration number that is not a VAT ID doesn't count here, nor does a direct-debit creditor ID.

How to fix

Ask the seller for a corrected invoice with one of these. Without a register entry or VAT ID, a seller identifier such as the supplier number the buyer uses for it is enough.