BR-DE-27 — E-Invoice Validation Rule & Fix

Fixture ID: shortPhone · XPath: /ubl:Invoice/cac:AccountingSupplierParty/cac:Party/cac:Contact/cbc:Telephone

1. Why This Rule Triggers (Diagnostic Message)

The seller contact telephone number (BT-42) should contain at least three digits, but "call" contains 0. KoSIT raises this as a warning rather than an error, so the invoice will be accepted — but the number as written cannot be dialled.

2. How to Fix BR-DE-27

Write the full number in international format, e.g. "+49 30 1234567".

3. Valid Code / Payload Example

"phone": "+49 30 1234567"