What causes the UBL-SR-04 error?

UBL elements with no content should be omitted.

How do I fix UBL-SR-04?

Remove empty elements or add required content. Invoice Navigator can propose a fix for this error, which you review and confirm before it is applied.

Is UBL-SR-04 a critical error?

UBL-SR-04 is a warning that may not always cause rejection, but should be addressed for full compliance.

Error codes · ubl-2.1

UBL-SR-04In your invoicing software

Invoice object identifier shall occur maximum once

This is the rejection, word for word: „[UBL-SR-04] Your invoice contains multiple invoice object identifiers. EN16931 allows only one invoice object identifier.“

XPath: Various empty elements

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

What we doRemove empty elements or add required content.

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-04

Location/Invoice/cac:AdditionalDocumentReference[cbc:DocumentTypeCode='130']

From youA re-exported file

ThenRe-export

ProofSHA-256 and /verify link after the check

Often appears together with

UBL-SR-03Despatch advice identifier shall occur maximum once