When new appointments are created in the calendar, the Zarafa client will update the Free/Busy information. This update will occur some time after the appointment was saved or when Outlook is closed. Other users will not directly see this change in their Free/Busy overview.

When an appointment is created, it is possible to invite other people. If other users are added, the overview will be updated to show the Free/Busy times of the user, making it easy for the organizer to plan the new appointment.

To use the Free/Busy times, the Public Store on the Zarafa server must be available. All the Free/Busy times will be stored in an invisible folder in the Public Store. If a user did not yet login with Outlook or Webaccess and did not create an item in the calendar, the Free/Busy times will not be available.