BR-CL-10: Party identifiers must use an ISO 6523 scheme

What it means

When a party identifier, such as the seller's, buyer's or payee's identifier, says which scheme it belongs to, the scheme must be a four-digit code from the ISO 6523 ICD list, for example 0088 for a GLN, 0060 for a DUNS number, 0106 for a Dutch KvK number or 0009 for a French SIRET.

Why it matters

Codes are read by software, not by people. A value outside the agreed code list cannot be interpreted, so the recipient's system rejects the invoice even when the value looks sensible to a person.

How to fix it

Check the scheme of each party identifier and use the four-digit code of the register the number comes from, or leave the scheme out. Codes such as "GLN", "KVK" or "VAT" in letters are not valid. If you build the XML yourself, it is the schemeID of cac:PartyIdentification/cbc:ID (UBL) or ram:GlobalID (CII).

The rule as published

Any identifier identification scheme identifier MUST be coded using one of the ISO 6523 ICD list.

Where this rule applies