Error codes · EN 16931

BR-CL-21Fixable here

Invalid product identifier scheme

This is the rejection, word for word: „[BR-CL-21] A line item's standard product identifier uses an invalid scheme code. The most common standard identifier is a GTIN (barcode number), which should use scheme code 0160. Other valid schemes include ISO 6523 ICD codes for industry-specific numbering systems.“

XPath: cac:InvoiceLine/cac:Item/cac:StandardItemIdentification/cbc:ID/@schemeID — EN16931 rule BR-CL-21. Must be a valid ISO 6523 ICD code.

What to have readyThe missing value from your purchase order, contract or bookkeeping.
What we doInvoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (BR-CL-21).
If you enter it yourself in your invoicing software
Before
<Invoice>
  <!-- Issue: Item standard identifier scheme identifier MUST belong to th -->
</Invoice>
After
<Invoice>
  <!-- Issue resolved per EN 16931 -->
</Invoice>
What the finding looks likeExample
FindingValue missing · BR-CL-21
Locationcac:InvoiceLine/cac:Item/cac:StandardItemIdentification/cbc:ID/@schemeID
From youThe missing value
ThenPassed
ProofSHA-256 and /verify link after the check