Counterfoil rule note

UBL-DT-13

Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.

Country

EU

Syntax

UBL

Severity

warning

Last verified

2026-10-18

Official statement

Unit code list identifier attribute should not be present

Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/UBL-DT-13/

Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL

Severity note: warning, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.

Plain-language reading

A unit code list identifier attribute should not be present. The statement has no period and says should not. It does not say shall. It is 57 characters. The flag is warning. The context is the same string as BR-CO-18. The published test is not(//@unitCodeListIdentifier). It does not call count and it does not call exists.

What to change

Leave the unitCodeListIdentifier attribute off the document.

Illustration

Illustration of the condition in the official statement. Not an example published by the source.

Fails the stated condition. The document includes a unitCodeListIdentifier attribute.

Passes the stated condition. The document includes no unitCodeListIdentifier attribute.

Published context and test

Copied from the source. Not reimplemented on this page.

/ubl:Invoice | /cn:CreditNote

not(//@unitCodeListIdentifier)

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