User groups define the tasks or functions that a person performs in a company. A certain set of function, license and database privileges, as well as profiles, is assigned to different user groups. If a user group is assigned to a user, the user has all privileges and profiles assigned to that user group. You can combine different user groups, that is, a user can belong to several different user groups at the same time, or the user's user groups may change, depending on the context.