BR-DE-6
Validation message
Das Element "Seller contact telephone number" (BT-42) muss übermittelt werden.
Explanation
XRechnung requires a phone number for your own contact point (BT-42) — independently of the email address; both are mandatory. A central number is fine; it need not belong to a single person.
How to fix
Add your own phone number to the contact information. Set it once in your company profile and it carries into every invoice.
Applies to
- XRechnung (UBL)
- XRechnung (CII)