Quick Start: Fix E-Invoice Errors

The Fixer tool works in four simple steps:

1. Upload - Drop your invoice XML file (no signup needed to try)
2. We Find Issues - We validate against all rules and categorize errors
3. We Fix Them - Auto-fixable errors are corrected automatically. If we need info, we ask simple questions.
4. Download - Get your compliant invoice plus a full Evidence Pack

What Happens to Your Data?

Your invoice is processed in secure EU servers. After processing:

• Fixed invoice: Available for download immediately
• Evidence Pack: Stored securely for retrieval (Pro/Business)
• Original file: Deleted after processing

Stop Wasting Time on XML

Without our Fixer, when you get validation errors you need to:

• Understand what each error code means
• Open the XML in a text editor
• Find the right element to change
• Know the correct format/code to use
• Re-validate to check if it worked

This can take hours if you're not an XML expert. Our Fixer does it in seconds.

We Never Change Business Data

Our Safety Promise: We only fix technical errors. We will NEVER change:

• Amounts, totals, or VAT calculations
• VAT IDs or company registration numbers
• Bank details (IBAN, BIC)
• Dates that affect legal obligations

Full Audit Trail

Every fix is logged. You get a complete Evidence Pack showing exactly what changed, with before/after values and SHA-256 verification hashes.

Step 1: Go to the Fixer

Visit Invoice Navigator Fixer - no signup needed to try.

Step 2: Upload Your Invoice

Drop your XML file or click to browse. We support Peppol BIS 3.0, XRechnung, Factur-X, and EN 16931 formats.

Step 3: Review Changes

We show you exactly what we fixed. Auto-fixes are applied automatically. If we need information (like a missing buyer reference), we ask simple questions.

Step 4: Download

Get your fixed invoice as XML, plus an Evidence Pack (JSON for free tier, full ZIP for Pro/Business).