errorDEXRECHNUNG

`BR-DE-28`:Seller Contact Email Must Have Valid Format

Contact email addresses must be valid email format. The email must contain proper structure with username, @ symbol, and domain. Invalid email addresses fail schema validation.

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Auto-fix: Normalize email format by trimming whitespace, converting to lowercase, and validating structure. If email is clearly malformed (no @, invalid domain), flag for INPUT.

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Why This Error Matters

Invoice will be rejected by XRechnung validation. Invalid email format fails schema validation and prevents proper contact information storage.

How to Fix It

Technical Details

XPath: //cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:ElectronicMail | The seller contact email (BT-43) must contain exactly one @ symbol, with at least 2 characters before and after, no spaces, and no dots at the start or end.

Common Causes

Typo in email address (missing @, double dots)
Invalid domain format
Spaces accidentally included in email
Placeholder text left instead of real email
Copy/paste error corrupted the email address

Frequently Asked Questions

This error occurs when the seller contact email (BT-43) has an invalid format. Common issues include missing @ symbol, spaces in the email, dots at the start or end, or too few characters before/after the @ symbol.

Enter a properly formatted email address like kontakt@muster.de. Remove any spaces, ensure there is exactly one @ symbol, and verify the email does not start or end with a dot.

XRechnung requires: exactly one @ symbol, at least 2 characters before and after @, no spaces, no dots at the start or end, and no dot or space immediately before the @ symbol.

XRechnung requires machine-readable email addresses for automated processing. Invalid formats would break contact information storage and automated communication systems.

BR-DE-28:Seller Contact Email Must Have Valid Format