What it means
This rule checks the buyer's legal entity block in a UBL invoice or credit note (cac:AccountingCustomerParty, cac:Party, cac:PartyLegalEntity). It must not contain cac:CorporateRegistrationScheme, a block that describes the company register of the buyer. The buyer's company registration number itself (BT-47, cbc:CompanyID) is not targeted by this check.
Why it matters
The check concerns the separate register-details block, not the buyer's company registration number or its scheme code. You do not need to remove those identifiers to address this warning.
How to fix it
Configure your UBL export to omit only the separate corporate registration scheme block. Keep the buyer's company registration number (BT-47) and its scheme code if present. If you edit or generate the XML, remove cac:CorporateRegistrationScheme from cac:AccountingCustomerParty/cac:Party/cac:PartyLegalEntity. Recheck the file in Klarbon.
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 AccountingCustomerParty Party PartyLegalEntity CorporateRegistrationScheme 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 |
Check your file
Drop your e-invoice to see whether UBL-CR-250 still fails, and which other rules do.
Related rules
- UBL-CR-251 Leave the buyer's head office party out
- UBL-CR-252 Leave the buyer's shareholder details out
- UBL-CR-253 Leave the identifier of the buyer's contact out
- UBL-CR-254 Leave the buyer contact's fax number out
- UBL-CR-255 Leave the note on the buyer's contact out
- UBL-CR-256 Leave other communication channels for the buyer contact out