Yes, a client can be a full access user on one reservation and a lead on another. Full access and lead (also known as primary traveler) are different roles that can be independently assigned to travelers for different trips:
Full Access: This role offers the same permissions as the primary traveler, and multiple individuals can have full access on a trip.
Primary Traveler (Lead): This is the main point of contact for a trip and also comes with full access permissions.
This flexibility allows for customized access management based on each client's involvement in the specific trip.