XRechnung 2.5.0 · UBLStored validation assertion
UBL-SR-04
XRechnung 2.5.0 · UBL
fatalschema
Original rule text
[UBL-SR-04]-Invoice object identifier shall occur maximum once
(count(cac:AdditionalDocumentReference[cbc:DocumentTypeCode='130']/cbc:ID) <= 1)