Automotive Cloud fleet management data model: Fleet (cohort header), FleetAsset (M:N junction to Asset), FleetParticipant (fleet manager, driver, primary contact). TRIGGER when: modeling commercial or B2B fleet ownership, fleet driver assignment, fleet-wide service scheduling, or fleet contract management. DO NOT TRIGGER when: modeling individual customer vehicles (use sf-auto-vehicle-asset) or per-vehicle warranty (use sf-auto-warranty-claims).