E-Invoice Formats
You pick one format in the module configuration and it applies everywhere: back office downloads, bulk exports, FTP uploads and platform submissions.
| Format | Syntax | Use it for |
|---|---|---|
| UBL Peppol BIS Billing 3.0 | UBL XML | The EU wide standard, used across the Peppol network |
| UBL EN 16931 French CIUS | UBL XML | The French interpretation of the European standard |
| CII Factur-X | CII XML | The Cross Industry Invoice format used by the French regulation |
| Hybrid Factur-X | PDF with CII XML inside | A single file readable by both people and machines |
All four are EN 16931 invoices. UBL and CII are the two XML syntaxes of that standard, and they carry the same information.
Which to pick
| Where the invoice goes | Format |
|---|---|
| A Belgian business, from 1 January 2026 | UBL Peppol BIS Billing 3.0 |
| Any Peppol access point | UBL Peppol BIS Billing 3.0 |
| A French Plateforme Agréée | Hybrid Factur-X, CII Factur-X, or UBL French CIUS |
| Chorus Pro, for French public bodies | Hybrid Factur-X, CII Factur-X, or UBL French CIUS |
| An accountant or an ERP over FTP | Whichever one they ask for |