How do I fix SDI-00200?

Ensure unique sequential numbering and include year in the invoice number. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.

Is SDI-00200 a critical error?

Yes, SDI-00200 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 SDI-00200 be automatically fixed?

SDI-00200 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 · FatturaPA · Italy

SDI-00200Partly

Duplicate invoice number

This is the rejection, word for word: „[SDI-00200] Invoice number + year combination must be unique per sender. SDI maintains a registry and rejects duplicates within the same fiscal year.“

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

What we doEnsure unique sequential numbering and include year in the invoice number.

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 · SDI-00200

From youThe correct figures

ThenChecked again

ProofSHA-256 and /verify link after the check