BR-DE-6
Validation message
Das Element "Seller contact telephone number" (BT-42) muss übermittelt werden.
Explanation
XRechnung requires a phone number for the seller's contact point, in addition to the email address; both are mandatory. A central number is fine; it need not belong to a single person.
How to fix
Ask the seller for a corrected invoice with the phone number of its contact point.
Applies to
- XRechnung (UBL)
- XRechnung (CII)