There are two types of users on the system, platform users who manage the marketplace and merchant users who belong to a vendor to manage their store. All users get access to different modules based on the permission given by the role they belong to. Only the super admin has full control over the system and the merchant has full access to his/her store. Also, merchant-type users can get access to some platform modules permitted by the platform.
Info! You can not access or modify users who have more privilege than you. You can only create users with less privilege than yourself.