What causes the BR-23 error?

If VAT accounting is in a different currency, TaxCurrencyCode must be specified.

Add TaxCurrencyCode if VAT is in different currency. You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.

Is BR-23 a critical error?

BR-23 is a warning that may not always cause rejection, but it indicates a potential compliance issue that should be addressed to ensure full compatibility.

Can BR-23 be automatically fixed?

Many instances of BR-23 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including tax currency code when different from document.

Which accounting software causes BR-23?

BR-23 is commonly seen in exports from Multi-currency invoicing systems. These software packages sometimes generate invoices that need adjustment to meet full compliance standards.

Error codes · EN 16931

BR-23Fixable here

Missing unit of measure code

This is the rejection, word for word: „[BR-23] Each Invoice line shall have an Invoiced quantity unit of measure code (BT-130). This identifies the unit of measure for the invoiced quantity using UN/ECE Recommendation 20 codes.“

XPath: /Invoice/cac:InvoiceLine/cbc:InvoicedQuantity/@unitCode. Uses UN/ECE Recommendation 20 codes. Common: C62 (piece/unit), HUR (hour), KGM (kilogram), LTR (liter), MTR (meter).

What to have readyThe missing value from your purchase order, contract or bookkeeping.

What we doInvoice Navigator automatically fixes this issue by correcting the `@unitCode` element in your Invoice.

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

<cbc:InvoicedQuantity>
  <!-- @unitCode is missing -->
</cbc:InvoicedQuantity>

After

<cbc:InvoicedQuantity>
  <@unitCode>valid-value</@unitCode>
</cbc:InvoicedQuantity>

What the finding looks likeExample

FindingValue missing · BR-23

Locationcac:InvoiceLine/cbc:InvoicedQuantity/@unitCode

From youThe missing value

ThenPassed

ProofSHA-256 and /verify link after the check

Often appears together with

BR-22Invoice line quantity required BR-24Invoice line net amount required