What are the roles of the users on the platform and how to use them?

Host company/Employer: If the person is authorized to sign, this person has all rights to add a person, to mandate a person and give authorization to another person, to add living places and maintain them and sign contracts. If the person is mandated, this person also has all rights to add a person, to mandate a person and give authorization to another person, to add living places and maintain them and sign contracts. In the case of a Host Company if the person is a planner, this person can ONLY add living places or maintain them but cannot sign contracts.                                    Or in case of an Employer if the person is a planner, this person can ONLY create booking codes or revoke/cancel them and can NOT sign contracts.