DE-R-001
If both supplier and customer are located in Germany, an invoice shall contain information on "PAYMENT INSTRUCTIONS" (BG-16).
error: the document is invalid
Peppol documentation ↗
What the rule checks
As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.
Context
(/ubl-invoice:Invoice | /ubl-creditnote:CreditNote)[$supplierCountryIsDE and $customerCountryIsDE]
Test
cac:PaymentMeans
Checked with Peppol BIS Billing 3.0 Invoice, Peppol BIS Billing 3.0 Credit Note