1. Confirm who is legally providing the regulated service
Start with the legal entity named in the proposal, not the product brand. Match the contracting and operating entities against DGFiP’s current PA list and record the date checked. DGFiP says affected businesses must use an approved platform to transmit and receive electronic invoices and send transaction and payment data from 1 September 2026. A PA can issue, transmit and receive invoices, preserve integrity, authenticity, readability and completeness during conversion, extract data, and transmit transaction and payment data. Only a registered PA can perform all regulated functions; a compatible but unregistered solution cannot do so itself. Registration lasts three renewable years, with definitive registration following real-condition interoperability tests. This proves regulatory status, not that every connector, workflow, archive or support tier is included. Require the quote to identify which registered entity performs each regulated function. Retain a dated copy of the official-list evidence with the procurement record so a later status change can be distinguished from the position assessed at award.