What causes the PEPPOL-EN16931-R120 error?

Line amount must equal quantity × price ± allowances/charges.

How do I fix PEPPOL-EN16931-R120?

Review your Invoice XML structure and correct the issue described by this rule. Check relevant cbc: and cac: elements per EN 16931 (PEPPOL-EN16931-R120). This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.

Is PEPPOL-EN16931-R120 a critical error?

Yes, PEPPOL-EN16931-R120 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-R120 be automatically fixed?

PEPPOL-EN16931-R120 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.

Error codes · EN 16931

PEPPOL-EN16931-R120Partly

Line amount does not match calculation

This is the rejection, word for word: „[PEPPOL-EN16931-R120] The net amount on one of your invoice lines does not match when we recalculate it from the quantity, price, and any line-level discounts or surcharges. This usually means a rounding error or data entry mistake in your accounting system.“

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

What we doReview your Invoice XML structure and correct the issue described by this rule. Check relevant cbc: and cac: elements per EN 16931 (PEPPOL-EN16931-R120).

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: Invoice line net amount MUST equal (Invoiced quantity × Item -->
</Invoice>

After

<Invoice>
  <!-- Issue resolved per EN 16931 -->
</Invoice>

What the finding looks likeExample

FindingNeeds your check · PEPPOL-EN16931-R120

Location/Invoice/cac:InvoiceLine/cbc:LineExtensionAmount

From youThe correct figures

ThenChecked again

ProofSHA-256 and /verify link after the check

Often appears together with

BR-CO-18An Invoice shall at least have one VAT breakdown group (BG-23)