What causes the BR-46 error?

InvoicedQuantity unitCode must be a valid UN/ECE Recommendation 20 code.

Add the required `cac:TaxSubtotal` element to your Invoice. Ensure it contains a valid value per EN 16931 (BR-46). This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.

Is BR-46 a critical error?

Yes, BR-46 is a critical error that will cause invoice rejection. It must be fixed before submission to ensure your invoice is accepted by the recipient's system.

Can BR-46 be automatically fixed?

BR-46 involves a financial or legal field that cannot be auto-modified by policy. Invoice Navigator detects and flags this error immediately, but the correction must be made manually in your ERP or invoicing software.

Which accounting software causes BR-46?

BR-46 is commonly seen in exports from All invoicing software. These software packages sometimes generate invoices that need adjustment to meet full compliance standards.

Error codes · EN 16931

BR-46Partly

Each VAT breakdown (BG-23) shall have a VAT category tax amount (BT-117).

This is the rejection, word for word: „[BR-46] Each VAT breakdown (BG-23) shall have a VAT category tax amount (BT-117).. Check the `cac:TaxSubtotal` element in your invoice XML.“

What to have readyThe correct figures from your bookkeeping; we show you which field is affected.

What we doAdd the required `cac:TaxSubtotal` element to your Invoice. Ensure it contains a valid value per EN 16931 (BR-46).

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

<cac:TaxTotal>
  <!-- cac:TaxSubtotal is missing -->
</cac:TaxTotal>

After

<cac:TaxTotal>
  <cac:TaxSubtotal>valid-value</cac:TaxSubtotal>
</cac:TaxTotal>

What the finding looks likeExample

FindingNeeds your check · BR-46

Location/Invoice/cac:InvoiceLine/cbc:InvoicedQuantity/@unitCode

From youThe correct figures

ThenChecked again

ProofSHA-256 and /verify link after the check

Often appears together with

BR-14Invoice total amount with VAT required BR-15Amount due for payment required