errorpeppol-bis-3

BR-27:Seller trading name or legal name required

The seller must have either a trading name or legal registration name.

Fix this in your source system

MANUAL

Business entity names require verification against official records. Automatic changes could cause legal compliance issues or misdirected invoices.

See the step-by-step instructions below to fix this error manually.

Why This Error Matters

Invoice rejected. Negative prices are invalid - use credit notes or negative quantities for refunds.

How to Fix It

1

Add trading name

In PartyName/Name for trading name

2

Or legal name

In PartyLegalEntity/RegistrationName for legal name

3

Best practice

Include both for clarity

Code Example

<cac:Party>
  <cac:PartyName>
    <cbc:Name>ABC Trading Ltd</cbc:Name>
  </cac:PartyName>
  <cac:PartyLegalEntity>
    <cbc:RegistrationName>ABC Trading Limited</cbc:RegistrationName>
  </cac:PartyLegalEntity>
</cac:Party>

Technical Details

XPath: /Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyName/cbc:Name or cac:PartyLegalEntity/cbc:RegistrationName

Common Causes

  • Negative price entered in source system by mistake
  • Credit adjustment applied at line level incorrectly
  • Discount exceeds gross price creating negative net
  • Currency conversion resulted in sign error
  • Data import from legacy system with sign convention issue

Commonly Seen In

All invoicing software

Frequently Asked Questions

The seller must have either a trading name or legal registration name.
Add seller PartyName or PartyLegalEntity/RegistrationName. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, BR-27 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.
Many instances of BR-27 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including seller trading name or legal name required.
BR-27 is commonly seen in exports from All invoicing software. These software packages sometimes generate invoices that need adjustment to meet full compliance standards.

Related Errors

BR-01

Invoice must have specification identifier

BR-28

Buyer trading name or legal name required

Last updated: 18 January 2026

Share this guide: