Supervisors can add a note when posting a task. The note will be available for workers to view before applying / accepting a shift.
Supervisors can edit the note by either tapping the pencil icon on the task details screen or tapping the 3 dot menu icon and selecting Edit (when this menu is available which is prior to the shift being scheduled).
Tasks with notes added will have a 'My Note' indicator from the supervisor's view and a 'Note' indicator from the worker's view.