XRechnung 2.0.2 · UBLStored validation assertion
UBL-CR-023
XRechnung 2.0.2 · UBL
warningschema
Original rule text
[UBL-CR-023]-A UBL invoice should not include the BillingReference CopyIndicator
not(cac:BillingReference/cac:InvoiceDocumentReference/cbc:CopyIndicator)