Supplier Invoice

Proprietary format	Reference	Document flow
FatturaPA	1.2.2	LCL_SupplierInvoice_IT_FatturaPA12_DocumentFlow
FatturaElettronicaSemplificata	1.0	LCL_SupplierInvoice_IT_FatturaElettronicaSemplificata_DocumentFlow

The FatturaPA XML format is used for business to business (B2B) as well as business to government (B2G) transactions.