UBL-SR-06: Preceding invoice reference shall occur maximum once
Severity: fatal · Syntax: UBL
Official message
Preceding invoice reference shall occur maximum once
What this means
The official message is: Preceding invoice reference shall occur maximum once This page does not add a further obligation.
Typical cause
The assertion in the context above failed for this file.
How to fix it
Adjust the file so the assertion succeeds, then validate it again. This page helps you read the rule.
Business term
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Related rules
Context and assertion
UBL cac:BillingReference
UBL
(count(cac:InvoiceDocumentReference) <= 1)Check a file now, free of charge
curl -F "file=@rechnung.xml" https://checkxrechnung.com/v1/validate