errorpeppol-bis-3

BR-28:Buyer trading name or legal name required

The buyer 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 gross prices are mathematically invalid.

How to Fix It

1

Add trading name

In PartyName/Name

2

Or legal name

In PartyLegalEntity/RegistrationName

3

Match records

Should match buyer master data

Code Example

<cac:AccountingCustomerParty>
  <cac:Party>
    <cac:PartyName>
      <cbc:Name>Customer Corp</cbc:Name>
    </cac:PartyName>
  </cac:Party>
</cac:AccountingCustomerParty>

Technical Details

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

Common Causes

  • Negative gross price entered in source system
  • Calculation error when applying surcharges
  • Base amount for allowance set incorrectly
  • Data corruption during system migration
  • Manual price override with wrong sign

Commonly Seen In

All invoicing software

Frequently Asked Questions

The buyer must have either a trading name or legal registration name.
Add buyer PartyName or PartyLegalEntity/RegistrationName. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, BR-28 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-28 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including buyer trading name or legal name required.
BR-28 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-09

Seller country code is mandatory

BR-27

Seller trading name or legal name required

Last updated: 18 January 2026

Share this guide: