errorcountryDEUXRechnung (Germany)

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

Fix: Add BuyerReference element with Leitweg-ID or other reference. Upload your invoice to fix this automatically.

BuyerReference (BT-10) is mandatory in XRechnung.

Severity
Fatal
Rule set
XRechnung (Germany)
Country
DEU
Fix type
AUTO-FIX
Confidence
80%
Category
identifier

Engine Classification

Ensure buyer reference (Leitweg-ID) is present for XRechnung compliance

Confidence: 80% · Applied automatically in pipeline

What is BR-DE-15?

BR-DE-15 is a fatal validation rule defined in the XRechnung (Germany) specification (DEU national rules). It validates the BuyerReference element in the UBL invoice XML.

When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.

Target path: /Invoice/cbc:BuyerReference

Fix this error

Why This Error Matters

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

BR-DE-15 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.

Invoice Navigator can automatically correct this error in your pipeline. The fix is applied with full audit evidence, so your compliance trail remains intact.

Validator Behavior

  • ·Causes invoice rejection
  • ·Rejected by XRechnung endpoints
  • ·Error returned: BR-DE-15
  • ·Specification: XRechnung (Germany)

How to Fix It

1.

Add BuyerReference

Required element for XRechnung

2.

Use Leitweg-ID

For B2G: format like 04011000-12345-67

Before / After

Failing XML
<Invoice>
  <cbc:BuyerReference><!-- invalid or missing value --></cbc:BuyerReference>
</Invoice>
Corrected XML
<Invoice>
  <cbc:BuyerReference>correct-value</cbc:BuyerReference>
</Invoice>

Technical Reference

XPath/Invoice/cbc:BuyerReference
SpecXRechnung (Germany)
Operationset_default
StrategyEnsure buyer reference (Leitweg-ID) is present for XRechnung compliance

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

Seeing this in production? The API handles BR-DE-15 automatically. See the fix response →

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.

Related Errors

BR-CO-07Line item discount reason text does not match the reason codeBR-DE-16Seller VAT ID or tax number required

Related Content

Errors
Missing third party payment amount. When using third party payment group...Third party payment calculation error. Amount due must equal: Total with VAT...
Answers
What are the differences between e-invoice formats?Which EU countries have e-invoicing mandates and what are the deadlines?

Last updated: 27 February 2026

Share this guide:

Validate your invoice

Drop your XML here to check for BR-DE-15

Auto-fix BR-DE-15 in seconds

Upload your invoice and we fix this error automatically. Financial fields are never touched.

Fix it nowAutomate via API