How do I fix UBL-SR-44?

Invoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (UBL-SR-44). You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.

Is UBL-SR-44 a critical error?

Yes, UBL-SR-44 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted.

Can UBL-SR-44 be automatically fixed?

Yes, UBL-SR-44 can be automatically corrected. The fix is applied without modifying financial fields.

Error codes · EN 16931

UBL-SR-44In your invoicing software

An Invoice may only have one unique PaymentID, but the PaymentID may be used...

This is the rejection, word for word: „[UBL-SR-44] Your invoice has multiple different PaymentID values across PaymentMeans elements. EN16931 allows only one unique payment reference value, though it can be repeated across multiple payment means.“

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

What we doInvoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (UBL-SR-44).

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.

If you enter it yourself in your invoicing software

Before

<Invoice>
  <!-- Issue: An Invoice may only have one unique PaymentID. -->
</Invoice>

After

<Invoice>
  <!-- Issue resolved per EN 16931 -->
</Invoice>

Element order is part of the rule: if the element sits in the wrong place, the validator rejects with UBL-SR-44.

What the finding looks likeExample

FindingStructure invalid · UBL-SR-44

Location//cac:PaymentMeans/cbc:PaymentID

From youA re-exported file

ThenRe-export

ProofSHA-256 and /verify link after the check