Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
An Invoice shall contain the Seller name (BT-27).
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-06/
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.
An invoice must contain the seller name (BT-27). The message says "shall contain the Seller name", not "shall have". The published test checks that the seller party legal entity registration name is not blank.
Fill the seller party legal entity registration name (BT-27).
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. The seller party legal entity registration name is missing or blank.
Passes the stated condition. That registration name contains a non-empty seller name.
Copied from the source. Not reimplemented on this page.
/ubl:Invoice | /cn:CreditNote
normalize-space(cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:RegistrationName) != ''
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