BR-01 - Specification identifier is required
An invoice must have a Specification identifier (BT-24) stating which specification (CIUS / customisation) the document conforms to, e.g. the Peppol BIS Billing 3.0 identifier.
BR-01 - Specification identifier is required
An invoice must have a Specification identifier (BT-24) stating which specification (CIUS / customisation) the document conforms to, e.g. the Peppol BIS Billing 3.0 identifier.
What this rule checks
An invoice must have a Specification identifier (BT-24) stating which specification (CIUS / customisation) the document conforms to, e.g. the Peppol BIS Billing 3.0 identifier.
How to fix it
Add the Specification identifier. On Peppol BIS 3.0 this is the CustomizationID "urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0".
Validate against this rule
This rule is part of EN 16931. Check your invoice with the validator that matches your format:
Related rules
Source: CEN EN 16931 Schematron · Last verified: 2026-07-10
All validation rules