BR-DE-7:Das Element "Seller contact email address" (BT-43) muss übermittelt werden.
Fix: This requires user input to resolve. Provide the correct value for `cbc:ElectronicMail` (BT-43) (BR-DE-7). Provide the required value in the free validator.
German XRechnung requires Seller Contact Email (BT-43). An email address for the seller must be provided.
Engine Classification
Business data required · Explicit input workflow · No assumptions made
Required input: Contact Email (BT-43)
What is BR-DE-7?
BR-DE-7 is a fatal validation rule defined in the XRechnung (Germany) specification (DEU national rules).
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Why This Error Matters
Invoice rejected. German public sector requires seller email for communication.
BR-DE-7 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Rejected by XRechnung endpoints
- ·Error returned: BR-DE-7
- ·Specification: XRechnung (Germany)
How to Fix It
Identify the missing data
German XRechnung requires Seller Contact Email (BT-43). An email address for the seller must be provided.
Provide the required value
This requires user input to resolve. Provide the correct value for `cbc:ElectronicMail` (BT-43) (BR-DE-7).
Re-validate your invoice
Upload the corrected invoice to confirm BR-DE-7 is resolved.
Before / After
<cac:Contact> <cbc:ElectronicMail><!-- invalid or missing value --></cbc:ElectronicMail> </cac:Contact>
<cac:Contact> <cbc:ElectronicMail>correct-value</cbc:ElectronicMail> </cac:Contact>
Technical Reference
Common Causes
- ·Seller contact email missing for XRechnung
- ·BT-43 Seller contact email not transmitted
- ·German invoice requires seller contact email
- ·Contact/ElectronicMail empty in seller party
- ·Seller contact section missing email address
Seeing this in production? The API handles BR-DE-7 automatically. See the fix response →
Frequently Asked Questions
German XRechnung requires Seller Contact Email (BT-43). An email address for the seller must be provided.
This requires user input to resolve. Provide the correct value for `cbc:ElectronicMail` (BT-43) (BR-DE-7). You can also use Invoice Navigator's compliance engine to correct this automatically in your pipeline.
Yes, BR-DE-7 is a critical error that will cause invoice rejection. It must be fixed before submission.
Many instances of BR-DE-7 can be automatically corrected using Invoice Navigator's compliance engine. The fix is applied in your pipeline with full audit evidence.
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Last updated: 14 April 2026
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