Error codes · EN 16931

BR-54In your invoicing software

Item attribute name and value required

This is the rejection, word for word: „[BR-54] Each Item attribute (BG-32) shall contain an Item attribute name (BT-160) and value (BT-161).“

What to have readyOriginal Invoice Number
What we doThis requires user input to resolve. Add a `cac:BillingReference` with the original Invoice reference.
If you enter it yourself in your invoicing software
Before
<Invoice>
  <!-- Issue: Corrective invoices (type 384) must reference the invoice be -->
</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 BR-54.

What the finding looks likeExample
FindingStructure invalid · BR-54
Locationram:SpecifiedLineTradeSettlement/ram:BillingSpecifiedPeriod
From youOriginal Invoice Number
ThenRe-export
ProofSHA-256 and /verify link after the check