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:IndustryClassificationCode, a code for the seller's industry or line of business. EN 16931 does not ask for one.
Why it matters
EN 16931's UBL rules do not use a separate industry classification element in the seller's party details.
How to fix it
Look in your invoicing software for a company setting that adds an industry or activity code to the seller details and switch it off, then export again. Your company registration number and VAT number are separate fields and stay as they are. If you build the XML yourself, delete cbc:IndustryClassificationCode 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 IndustryClassificationCode 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-145 still fails, and which other rules do.
Related rules
- 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
- UBL-CR-150 Do not include a PO box element in the seller's address
- UBL-CR-151 Do not include a floor element in the seller's address