Engine Classification
Financial or legal field · Modification blocked by policy
Reason: Peppol invoices entering Italy are converted to FatturaPA format at the SDI gateway. Complex invoices may not convert correctly. Options: 1) Simplify the invoice structure, 2) Send directly in FatturaPA format to Italian recipients, 3) Contact your Peppol Access Point for conversion support.
What is PEPPOL-SDI-01?
PEPPOL-SDI-01 is a fatal validation rule defined in the Peppol-SDI specification (ITA national rules).
When this rule fires, the invoice is rejected by Peppol access points and never reaches the buyer.
Why This Error Matters
PEPPOL-SDI-01 is a hard failure — the invoice must be corrected and re-sent before it can reach the recipient.
Validator Behavior
- ·Causes invoice rejection
- ·Rejected by PEPPOL Access Points
- ·Rejected by SDI (Sistema di Interscambio)
- ·Error returned: PEPPOL-SDI-01
- ·Specification: Peppol-SDI
How to Fix It
Technical Reference
Common Causes
- ·Missing Italian-specific fields in Peppol invoice
- ·Codice Destinatario not mapped correctly
- ·VAT treatment differences between formats
Seeing this in production? The API handles PEPPOL-SDI-01 automatically. See the fix response →
Frequently Asked Questions
When Peppol invoices enter Italy via the SDI gateway, they must be converted to FatturaPA format. Conversion issues are common with complex invoices.
Validate both Peppol BIS and FatturaPA compatibility before sending. This error involves a protected field — Invoice Navigator flags it in your pipeline so your team can correct it at the source.
Yes, PEPPOL-SDI-01 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.
PEPPOL-SDI-01 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.
Related Content
Last updated: 3 March 2026
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This error involves a financial field that can't be auto-modified. We'll flag it with a clear diagnosis so you can fix it at the source.