What it means
The rule flags a cac:ServiceProviderParty under cac:TaxRepresentativeParty. In UBL this is a service provider linked to the tax representative, with its own name, address and account details. EN 16931 has no field for it. The tax representative itself is described only by a name (BT-62), a VAT number (BT-63) and a postal address (BG-12). The check is the same for invoices and credit notes.
Why it matters
EN 16931 does not use a service provider party within the tax representative's details.
How to fix it
Leave the service provider details out of the tax representative's XML export. If the information matters, agree another way to tell the recipient, as EN 16931 does not use this element. If you build the XML yourself, delete cac:ServiceProviderParty from cac:TaxRepresentativeParty. Recheck the exported 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 TaxRepresentativeParty ServiceProviderParty 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-339 still fails, and which other rules do.
Related rules
- UBL-CR-340 No power of attorney for the tax representative
- UBL-CR-341 No bank account for the tax representative
- UBL-CR-342 Leave out the delivery identifier
- UBL-CR-343 Leave out the delivery quantity
- UBL-CR-344 Leave out the minimum delivery quantity
- UBL-CR-345 Leave out the maximum delivery quantity