[UBL-CR-128]-A UBL invoice should not include the AdditionalDocumentReference Attachment External CharacterSetCode
UBL-CR-128pxs-taxdata:TaxData/pxs-taxdata:ReportedTransaction/pxs-taxdata:ReportedDocumentnot(cac:AdditionalDocumentReference/cac:Attachment/cac:ExternalReference/cbc:CharacterSetCode)