You can monitor both your own and delegated tasks. In delegated tasks, you will not be entered as a participant.
You can monitor a task via the Deadline, Priority or Due date fields. You have to enter a value into the Due date field.
Notifications are always sent for monitored tasks. The notifications will indicate automatically which user changed the task data record. Notifications are sent for ten days. You cannot change this value.
The user entered in the Editor field cannot deactivate the Monitor this task option.
More notifications for tasks are available via the notification service. Contrary to monitored tasks, you have to have been entered as a participant to the task and subscribe to the respective rules.