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Warning

UBL-CR-114: Leave the document type text out of additional document references

In short

Warning: worth checking.

UBL-CR-114 means an additional document reference in your UBL invoice or credit note carries a free-text document type (cbc:DocumentType), which EN 16931 does not use. Delete that element from cac:AdditionalDocumentReference and keep the other details.

On this page

What it means

This rule checks that no cac:AdditionalDocumentReference in a UBL invoice or credit note contains a free-text document type (cbc:DocumentType). It applies to all additional document references, including supporting documents (BG-24). It does not check the code element cbc:DocumentTypeCode, which is a different element.

Why it matters

EN 16931 recommends leaving the free-text document type out of additional document references.

How to fix it

Delete cbc:DocumentType from cac:AdditionalDocumentReference, or ask your invoicing software supplier to stop exporting it there. If the reference is for a supporting document, you can name its kind in the description (BT-123), for example Timesheet or Delivery note. Do not remove cbc:DocumentTypeCode when fixing this warning. Recheck the corrected file.

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 DocumentType

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-114 still fails, and which other rules do.

Updated 6 November 2026