PEPPOL-COMMON-R052 — E-Invoice Validation Rule & Fix

Fixture ID: peppolBadDanishSecondary · XPath: /ubl:Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyIdentification/cbc:ID

1. Why This Rule Triggers (Diagnostic Message)

The Seller identifier (BT-29) is "123" under scheme "0096", which identifies the Danish chamber of commerce number (P-number). A value in that scheme must be exactly ten digits, and this one is not. A Danish P-number identifies a production unit — a site — rather than the legal entity the CVR number identifies. It is ten digits with no check digit, so the length and the digits are all a format check can verify. Peppol flagged this rule a warning until BIS 3.0.21 made it fatal for every profile, mandatory from 17 August 2026, so a document that passed with a warning before then is now refused. Peppol flags this fatal: the identifier is what an access point resolves to find your counterparty, so a value in the wrong form is undeliverable. This is a Peppol BIS Billing 3.0 profile rule: it applies because profile is "peppol-bis-3". It does not apply to the en16931, xrechnung-ubl or xrechnung-cii profiles, whose validators will accept the same document.

2. How to Fix PEPPOL-COMMON-R052

Correct seller.identifier, or change its scheme identifier if the value belongs to a different register. A failing check digit or length almost always means a digit was transposed, dropped or added in transcription — compare it against the source register rather than re-typing it.

3. Valid Code / Payload Example

"identifier": { "schemeId": "0096", "value": "1234567890" }