Most providers (Motive, Samsara, FTS, Wialon, Echoes) connect via a standard OAuth2 flow. Geotab uses a separate session-based flow: you're asked to redirect to TollTally with a session ID from your Geotab dashboard, and the connection is validated against your Geotab session, database name, and username. Geotab is also excluded from the free-trial trigger described above.