Peppol BIS Billing 3.0 · rule

UBL-CR-674

Layer en16931·Checked against Peppol BIS Billing 3.0 2026.5

What does UBL-CR-674 mean? A UBL invoice should not include the PrimaryAccountNumber schemeID

Why did my invoice fail UBL-CR-674?

The schemeID attribute on cac:CardAccount/cbc:PrimaryAccountNumber should not be used in an EN 16931 UBL invoice. The core standard maps only the plain card account number value (BT-87); the attribute is outside the core invoice model and validators warn on it. Remove the attribute and keep just the (masked) card number.

Official rule text

A UBL invoice should not include the PrimaryAccountNumber schemeID

Common causes

Generic UBL library emits schemeID on every identifier by default
Copying examples from full UBL 2.1 documentation rather than the EN 16931 subset

How do I fix it?

<cac:CardAccount>
  <cbc:PrimaryAccountNumber>1234********5678</cbc:PrimaryAccountNumber>
</cac:CardAccount>

Check your invoice against this rule

Paste it into the live demo, or call POST /v1/validate. See the quickstart.