UBL-SR-06

[UBL-SR-06]-Preceding invoice reference shall occur maximum once

About

ID

UBL-SR-06

Flag

fatal

Context

pxs-taxdata:TaxData/pxs-taxdata:ReportedTransaction/pxs-taxdata:ReportedDocument/cac:BillingReference

Test

(count(cac:InvoiceDocumentReference) <= 1)