What causes the UBL-SR-02 error?

UBL requires Common Aggregate and Basic Component namespaces.

How do I fix UBL-SR-02?

Add cac and cbc namespace declarations. Invoice Navigator can propose a fix for this error, which you review and confirm before it is applied.

Is UBL-SR-02 a critical error?

Yes, UBL-SR-02 is a critical error that will cause invoice rejection. It must be fixed before submission.

Error codes · ubl-2.1

UBL-SR-02In your invoicing software

Receive advice identifier shall occur maximum once

This is the rejection, word for word: „[UBL-SR-02] Your invoice contains multiple receive advice identifiers. EN16931 allows only one receive advice identifier.“

XPath: /Invoice/@xmlns:cac and @xmlns:cbc

What to have readyNothing. The file has to be re-exported from your invoicing software; we check it again afterwards.

What we doAdd cac and cbc namespace declarations.

Choose the rejected invoiceor drop it here

XRechnung XML or ZUGFeRD PDF. Checking is free · corrected file €1.90 · the first every 30 days is free · no sign-up.

What the finding looks likeExample

FindingStructure invalid · UBL-SR-02

Location/Invoice/cac:ReceiptDocumentReference

From youA re-exported file

ThenRe-export

ProofSHA-256 and /verify link after the check

Often appears together with

UBL-SR-01Contract identifier shall occur maximum once