XRechnung 2.1.0 · UBLStored validation assertion
UBL-CR-107
XRechnung 2.1.0 · UBL
warningschema
Original rule text
[UBL-CR-107]-A UBL invoice should not include the ContractDocumentReference ValidityPeriod
not(cac:ContractDocumentReference/cac:ValidityPeriod)