Counterfoil rule note
Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.
The Item standard identifier (BT-157) shall have a Scheme identifier.
Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-64/
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 Item standard identifier (BT-157) must have a Scheme identifier. The message starts with "The", not "Each", and says "shall have a Scheme identifier". It ends with a period. The context is the item standard identifier on an invoice line or a credit note line. The published test checks that the schemeID attribute exists. It does not check the scheme value.
When an item standard identifier (BT-157) is sent, give that id a scheme identifier.
Illustration of the condition in the official statement. Not an example published by the source.
Fails the stated condition. An item standard identifier has no schemeID attribute.
Passes the stated condition. That identifier has a schemeID attribute.
Copied from the source. Not reimplemented on this page.
cac:InvoiceLine/cac:Item/cac:StandardItemIdentification/cbc:ID | cac:CreditNoteLine/cac:Item/cac:StandardItemIdentification/cbc:ID
exists(@schemeID)
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