Error code BR-CO-26
The seller can't be identified
The invoice needs at least one of: the seller's identifier (BT-29), legal registration number (BT-30) or VAT number (BT-31).
The official rule
“In order for the buyer to automatically identify a supplier, the Seller identifier (BT-29), the Seller legal registration identifier (BT-30) and/or the Seller VAT identifier (BT-31) shall be present.”
Official text, in the language the rule set publishes it in.
Fields named: BT-29 · BT-30 · BT-31
Common causes
- Your company profile has no company number or VAT number.
- The numbers are filled in but not exported, e.g. because of a missing setting.
How to fix it
- Add your company number and/or VAT number to your company settings.
Where to fix it in your software
- orgaMAX: Stammdaten › Meine Firma (help page)
From each provider's own help page, read on 25 October 2026. Menus can change; we are not linked to these providers.
Wrong vs. right (UBL)
Wrong
<cac:AccountingSupplierParty>
<cac:Party>
…
<cac:PartyLegalEntity>
<cbc:RegistrationName>Atelier Lumen BV</cbc:RegistrationName>
</cac:PartyLegalEntity>
</cac:Party>
</cac:AccountingSupplierParty>Right
<cac:AccountingSupplierParty>
<cac:Party>
…
<cac:PartyLegalEntity>
<cbc:RegistrationName>Atelier Lumen BV</cbc:RegistrationName>
<cbc:CompanyID schemeID="…">0712345630</cbc:CompanyID>
</cac:PartyLegalEntity>
</cac:Party>
</cac:AccountingSupplierParty>