NL-R-001
For suppliers in the Netherlands, if the document is a creditnote, the document MUST contain an invoice reference (cac:BillingReference/cac:InvoiceDocumentReference/cbc:ID)
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
cbc:CreditNoteTypeCode[$supplierCountryIsNL]
Test
/*/cac:BillingReference/cac:InvoiceDocumentReference/cbc:ID
Checked with Peppol BIS Billing 3.0 Invoice, Peppol BIS Billing 3.0 Credit Note