Error codes › BR-DE-27 · Deutsch
BR-DE-27: Seller contact telephone number is too short
A rule from XRechnung, the German national specification (CIUS) of EN 16931. What the message means and how to fix it.
What the message means
The telephone number of the seller contact (BT-42) should contain at least three digits. The rule catches placeholders such as “-”, “n/a” or “0”. It is a warning.
How to fix it
Enter a real number that is answered, ideally in international format such as +49 221 1234567. If there is no direct line, use the main number.
Where the field is in the file
- UBL:
cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:Telephone - CII:
ram:SellerTradeParty/ram:DefinedTradeContact/ram:TelephoneUniversalCommunication/ram:CompleteNumber
The rule applies only to invoices that declare XRechnung in the specification identifier (BT-24), for example invoices to German public authorities. For Peppol BIS, ZUGFeRD or a plain EN 16931 invoice it does not apply. The original rule text in the KoSIT files is German.
Check the invoice again: The free validator runs the official KoSIT rule files (EN 16931 rules for UBL and CII, plus the German XRechnung rules) in your browser. Your invoice never leaves your computer, and the report links to the English explanations.
Technical notes on the data format, not tax or legal advice. Whether VAT rate, supply and amounts are correct in substance is a question for your tax adviser.