PEPPOL-EN16931-R080

Only one project reference is allowed on document level

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-creditnote:CreditNote
Test
(count(cac:AdditionalDocumentReference[cbc:DocumentTypeCode='50']) <= 1)

Checked with Peppol BIS Billing 3.0 Invoice, Peppol BIS Billing 3.0 Credit Note