How do I fix PEPPOL-EN16931-R121?

Set BaseQuantity to positive number (default 1). You can also use Invoice Navigator's automatic Fixer tool to correct this instantly.

Is PEPPOL-EN16931-R121 a critical error?

Yes, PEPPOL-EN16931-R121 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 PEPPOL-EN16931-R121 be automatically fixed?

Many instances of PEPPOL-EN16931-R121 can be automatically corrected using Invoice Navigator's Fixer tool. Upload your invoice and the tool will identify and fix common issues, including base quantity must be positive.

Error codes · Peppol BIS 3.0

PEPPOL-EN16931-R121Partly

Base quantity must be positive

This is the rejection, word for word: „[PEPPOL-EN16931-R121] Price base quantity must be > 0.“

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

What we doInvoice Navigator automatically fixes this Invoice compliance issue by updating the relevant XML elements (PEPPOL-EN16931-R121).

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

<Invoice>
  <!-- Issue: Base quantity MUST be a positive number above zero -->
</Invoice>

After

<Invoice>
  <!-- Issue resolved per Peppol BIS 3.0 -->
</Invoice>

What the finding looks likeExample

FindingNeeds your check · PEPPOL-EN16931-R121

Location//cac:InvoiceLine/cac:Price/cbc:BaseQuantity

From youThe correct figures

ThenChecked again

ProofSHA-256 and /verify link after the check

Often appears together with

PEPPOL-EN16931-R120Line amount does not match calculation