fatalPeppol BIS Billing 3.0profileUBLBT-42
The element "Seller contact telephone number" (BT-42) shall be provided.
The seller contact telephone number (BT-42) is missing.
Add a telephone number with at least three digits (UBL Contact/cbc:Telephone) - see BR-DE-27.
UBL — context (/ubl-invoice:Invoice/cac:AccountingSupplierParty/cac:Party/cac:Contact | /ubl-creditnote:CreditNote/cac:AccountingSupplierParty/cac:Party/cac:Contact)[$supplierCountryIsDE and $customerCountryIsDE]
cbc:Telephone[boolean(normalize-space(.))]