Error codes · UBL 2.1

UBL-CR-546In your invoicing software

A UBL invoice should not include the InvoiceLine DocumentReference IssuerParty

This is the rejection, word for word: „[UBL-CR-546] Your invoice contains an InvoiceLine DocumentReference IssuerParty element which is not allowed in EN16931 invoices. This element must be removed.

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 removes the disallowed `cac:IssuerParty` element from your Invoice (UBL-CR-546).
If you enter it yourself in your invoicing software
Before
<cac:DocumentReference>
  <cac:IssuerParty>value</cac:IssuerParty>
</cac:DocumentReference>
After
<cac:DocumentReference>
  <!-- cac:IssuerParty removed for EN 16931 compliance -->
</cac:DocumentReference>

Element order is part of the rule: if the element sits in the wrong place, the validator rejects with UBL-CR-546.

What the finding looks likeExample
FindingStructure invalid · UBL-CR-546
Location/Invoice/cac:InvoiceLine/cac:DocumentReference/cac:IssuerParty
From youA re-exported file
ThenRe-export
ProofSHA-256 and /verify link after the check
UBL-CR-546: A UBL invoice should not include the InvoiceLine DocumentReference IssuerParty