The ShareAppointment property determines whether users can share their calendar appointments. When the property is enabled, appointments can be shared with those users that have been selected for sharing.
Config Option > Supplier > EmployerSetting
True: Appointments can be shared.
False: Appointments cannot be shared with other users.
Where the setting is reflected...
The Share Calendar option in the Calendar section of Avionté, and in Admin Tools in the Employer category's User tab when choosing the Is Calendar Owner option.