Validation rules
BR-DE-27
The seller contact phone number (BT-42) should contain at least three digits.
- Rule
BR-DE-27— official EN 16931 / XRechnung rule- Severity
- warning
- Business term
BT-42— Seller contact phone- Field in your JSON
invoice.seller.contact.phone
How to fix it
Use a real phone number in invoice.seller.contact.phone.
BR-DE-27 auf Deutsch — was bedeutet der Fehler?
Die Telefonnummer der Ansprechperson (BT-42) soll mindestens drei Ziffern enthalten. Der Validator meldet eine Warnung.
So beheben Sie den Fehler
Verwenden Sie eine echte Telefonnummer in invoice.seller.contact.phone.
Official sources
- XRechnung specification (KoSIT / xeinkauf.de)
- KoSIT validator on GitHub and the XRechnung validator configuration
Every 422 from the API lists the rule id, the path in your request JSON, a plain-language message and a suggested fix — see the docs overview for the report format.