How do I fix BR-DE-6?

This requires user input to resolve. Provide the correct value for `cbc:Telephone` (BT-42) (BR-DE-6). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.

Is BR-DE-6 a critical error?

Yes, BR-DE-6 is a critical error that will cause invoice rejection. It must be fixed before submission.

Can BR-DE-6 be automatically fixed?

Many instances of BR-DE-6 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.

errorDEUXRechnung (Germany)

`BR-DE-6`:Das Element "Seller contact telephone number" (BT-42) muss übermittelt werden.

German XRechnung requires Seller Contact Telephone (BT-42). A phone number for the seller must be provided.

Severity

Fatal

Rule set

XRechnung (Germany)

Country

DEU

Fix type

INPUT REQUIRED

Engine Classification

Business data required · Explicit input workflow · No assumptions made

Required input: Contact Telephone (BT-42)

What is BR-DE-6?

BR-DE-6 is a fatal validation rule defined in the XRechnung (Germany) specification (DEU national rules). It checks whether das element "seller contact telephone number" (bt-42) muss übermittelt werden..

When this rule fires, the invoice is non-compliant and will be rejected by Peppol access points and national validation services. The sending system receives a rejection response and the invoice does not reach the buyer.

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Why This Error Matters

Invoice rejected. German public sector requires seller phone for queries.

BR-DE-6 is a hard failure. Invoices that trigger this rule are rejected at the access point and never reach the recipient. In Peppol networks, this means your sending system receives an MLR (Message Level Response) with a rejection status. The invoice must be corrected and re-sent, adding delay to your payment cycle.

Validator Behavior

·Causes invoice rejection
·Rejected by XRechnung endpoints
·Error returned: BR-DE-6
·Specification: XRechnung (Germany)

Before / After

Failing XML

<cac:Contact>
  <cbc:Telephone><!-- invalid or missing value --></cbc:Telephone>
</cac:Contact>

Corrected XML

<cac:Contact>
  <cbc:Telephone>correct-value</cbc:Telephone>
</cac:Contact>

Technical Reference

SpecXRechnung (Germany)

StrategyRequires user input: Seller contact phone number. Cannot auto-generate phone numbers.

Common Causes

·Seller contact telephone missing for XRechnung
·BT-42 Seller contact telephone not transmitted
·German invoice requires seller contact phone
·Contact/Telephone element empty in seller party
·Seller contact section missing phone number

Seeing this in production? The API handles BR-DE-6 automatically. See the fix response →

Related Errors

BR-DE-01

Invalid Leitweg-ID Format

BR-DE-02

Payment terms text recommended

BR-DE-1

Eine Rechnung (INVOICE) muss Angaben zu "PAYMENT INSTRUCTIONS" (BG-16)...

Last updated: 27 February 2026

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Handle BR-DE-6 Automatically in Your Pipeline

The compliance engine auto-remediates this error with controlled safety policies and evidence pack generation.

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BR-DE-6:Das Element "Seller contact telephone number" (BT-42) muss übermittelt werden.