How do I fix KSEF-010?

Validate XML against current FA schema before submission. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.

Is KSEF-010 a critical error?

Yes, KSEF-010 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 KSEF-010 be automatically fixed?

KSEF-010 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 · KSeF · Poland

KSEF-010Partly

KSeF XML schema validation failed

This is the rejection, word for word: „[KSEF-010] Invoice XML must conform exactly to the FA schema version (FA/1 or FA/2). Even minor deviations cause rejection.“

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

What we doValidate XML against current FA schema before submission.

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.

What the finding looks likeExample

FindingNeeds your check · KSEF-010

From youThe correct figures

ThenChecked again

ProofSHA-256 and /verify link after the check