fatalPeppol BIS Billing 3.0profileUBLBT-41
The element "Seller contact point" (BT-41) shall be provided.
The seller contact point (BT-41) is missing from the seller contact group.
Add a contact name or department, e.g. 'Accounts Receivable' (UBL Contact/cbc:Name).
UBL — context (/ubl-invoice:Invoice/cac:AccountingSupplierParty/cac:Party/cac:Contact | /ubl-creditnote:CreditNote/cac:AccountingSupplierParty/cac:Party/cac:Contact)[$supplierCountryIsDE and $customerCountryIsDE]
cbc:Name[boolean(normalize-space(.))]
Nothing is stored, and the whole invoice is checked, not just this rule. A PDF only works if it is Factur-X / ZUGFeRD — a PDF with the invoice XML inside it.