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Warning

UBL-CR-650: The invoice number must have no scheme attribute

In short

Warning: worth checking.

UBL-CR-650 means the invoice number (BT-1) has a schemeID attribute, which EN 16931 does not use. Remove the attribute and keep the number.

On this page

What it means

This rule checks the invoice number (BT-1), the cbc:ID directly under the invoice or credit note, and flags it if it has a schemeID attribute. In UBL that attribute would say which numbering scheme the number comes from. EN 16931 treats the invoice number as plain text. The rule does not check the number itself.

Why it matters

EN 16931 requires the document's cbc:ID to have no schemeID attribute. This check does not assess the invoice number text.

How to fix it

Remove schemeID from the cbc:ID directly under the invoice or credit note and keep the number unchanged. Do not remove scheme attributes from other identifiers to address this rule. If your software adds the attribute, ask its supplier to correct the export, then check the new file 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 shall not include the Invoice ID scheme identifier

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-650 still fails, and which other rules do.

Updated 6 November 2026