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Warning

UBL-CR-133: Supporting documents should not carry a verification result

In short

Warning: worth checking.

UBL-CR-133 means an additional document reference in your UBL invoice or credit note contains a verification result (ResultOfVerification), which EN 16931 does not use. Remove that element.

On this page

What it means

This rule checks that no document-level cac:AdditionalDocumentReference contains cac:ResultOfVerification in a UBL invoice or credit note. For supporting documents (BG-24), the reference holds an identifier (BT-122), an optional description (BT-123) and optionally a link or the file itself. The check applies to every additional document reference.

Why it matters

EN 16931 does not use a separate verification-result element in an additional document reference.

How to fix it

Remove cac:ResultOfVerification from cac:AdditionalDocumentReference. If the outcome matters to the buyer and relates to a supporting document, state it in the supporting document description (BT-123). Export the corrected file and check it again.

Once the file is corrected, check it again for free: Validate an invoice against EN 16931

Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice

The rule as published

A UBL invoice should not include the AdditionalDocumentReference ResultOfVerification

Where this rule applies

Rule set Version
EN 16931 (UBL) 1.3.17
EN 16931 (UBL credit note) 1.3.17
XRechnung 3.0 (UBL) 3.0.2
XRechnung 3.0 (UBL credit note) 3.0.2
Peppol BIS Billing 3.0 (invoice) 2026.5
Peppol BIS Billing 3.0 (credit note) 2026.5
SI-UBL 2.0 / NLCIUS (invoice) 2.0.3.13
SI-UBL 2.0 / NLCIUS (credit note) 2.0.3.13
France CTC (UBL invoice) 1.4.0-04
France CTC (UBL credit note) 1.4.0-04
CIUS-RO UBL Invoice 1.0.9 1.0.9
CIUS-RO UBL Credit Note 1.0.9 1.0.9
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether UBL-CR-133 still fails, and which other rules do.

Updated 6 November 2026