errorDExrechnung

BR-DE-15:Buyer reference (Leitweg-ID) mandatory

BuyerReference (BT-10) is mandatory in XRechnung.

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AUTO-FIX

Auto-fix: If Leitweg-ID exists elsewhere in document, copy to BT-10. Otherwise derive from purchase order reference if present.

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Why This Error Matters

Invoice rejected. Buyer reference is mandatory for German public sector routing.

How to Fix It

1

Add BuyerReference

Required element for XRechnung

2

Use Leitweg-ID

For B2G: format like 04011000-12345-67

Technical Details

XPath: /Invoice/cbc:BuyerReference

Common Causes

  • Buyer reference missing in XRechnung
  • BT-10 Buyer reference mandatory for German invoices
  • Leitweg-ID or order reference not provided
  • AccountingCustomerParty reference field empty
  • German B2G invoice without buyer reference

Frequently Asked Questions

BuyerReference (BT-10) is mandatory in XRechnung.
Add BuyerReference element with Leitweg-ID or other reference. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.
Yes, BR-DE-15 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-DE-15 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including buyer reference (leitweg-id) mandatory.

See Also

🇩🇪

E-Invoicing in Germany

Requirements & common errors

XRechnung Validator

Check your invoice now

Related Errors

BR-CO-07

Line allowance reason and code must match

BR-DE-16

Seller VAT ID or tax number required

Last updated: 16 January 2026

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