How to get a Reminder before a task is due?

To add the reminder before completing the task. Go to the particular task and click on the Advanced button, here you will get an option – ‘Add Reminder‘ from the dropdown list.

After selecting the ‘Add Reminder‘action, an additional tab will be displayed with the multiple time of duration for reminding of the tasks before completing.
Selecting any one time of duration for reminding task before completing.

After successfully set the reminder, a notification will be shown below the task.