Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
Each Additional supporting document (BG-24) shall contain a Supporting document reference (BT-122).
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-52/
Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL
Severity note: fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.
Each Additional supporting document (BG-24) must contain a Supporting document reference (BT-122). The message says "shall contain", not "shall contain the", and it starts with "Each". It ends with a period. The context is an additional document reference. The published test checks that cbc:ID is not blank. The comparison is != '' with a space.
Put a non-blank supporting document reference (BT-122) on each additional supporting document.
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. An additional document reference has no identifier, or that identifier is blank.
Passes the stated condition. That document reference identifier contains a non-empty value.
Copied from the source. Not reimplemented on this page.
cac:AdditionalDocumentReference
normalize-space(cbc:ID) != ''
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