Alerts and Reminders set up for Tasks serve different purposes.
Alerts - A user that assigns a Task to another firm member has the option to select an Alert so that they receive a Notification when the Task they assigned has been Completed or is Past Due.
Reminder - Used by the firm member completing the Task(s). Reminders can be set to be sent a number of Minutes, Hours, Days or Weeks before an event. They can be sent via SMS, Email or Popup when you are logged into your CARET Legal account.