What it means
In a UBL invoice or credit note, the seller (BG-4) is described under cac:AccountingSupplierParty/cac:Party. This rule checks that this block has no cbc:WebsiteURI, the seller's web address. The seller details in EN 16931 cover name, identifiers, address and contact person, but not a website.
Why it matters
EN 16931's UBL rules do not use a separate website element in the seller's party details.
How to fix it
Check your invoicing software for an option that exports the company website in the seller details and switch it off, then export again. If the buyer should still see your website, add it to the invoice note (BT-22) or print it on the PDF version of the invoice. If you build the XML yourself, delete cbc:WebsiteURI from cac:AccountingSupplierParty/cac:Party. Check the corrected 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 should not include the AccountingSupplierParty Party WebsiteURI 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-143 still fails, and which other rules do.
Related rules
- UBL-CR-144 Do not include a logo reference for the seller
- UBL-CR-145 Do not include an industry code for the seller
- UBL-CR-146 Do not include a language for the seller
- UBL-CR-147 Do not include an ID in the seller's address
- UBL-CR-148 Do not include an address type code in the seller's address
- UBL-CR-149 Do not include an address format code in the seller's address