Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
Buyer trade name shall occur maximum once
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/UBL-SR-40/
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.
The buyer trade name shall occur at most once. The statement has no period and says shall. It is 41 characters. The flag is fatal. The context is the same string as BR-CO-18. The published test counts the buyer party name. The count comparison has a space before <= and a space after it.
Send at most one buyer trade name.
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. The invoice has two buyer party names.
Passes the stated condition. The invoice has one buyer party name, or none.
Copied from the source. Not reimplemented on this page.
/ubl:Invoice | /cn:CreditNote
(count(cac:AccountingCustomerParty/cac:Party/cac:PartyName/cbc:Name) <= 1)
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