Tasks marked as Private within Outlook will not be viewable to other OfficeCalendar users, even if they have the security rights to view, edit, or delete items from your task list. These are referred to as Private Tasks.

To designate a Private Task, add a task or edit a task within Outlook as you normally would. In the upper right-hand corner of the Outlook task creation screen, you will see a lock icon labeled Private. Clicking this option ensures that this specific task will not be viewable by other Outlook or OfficeCalendar users.