Note: In order for users to receive alerts for PM Events, you must turn on alerts for your profile and anyone else who wishes to receive them. You only need to set this up once. Whoever is assigned to a PM event will receive the alert.
Click the white arrow next to your user name, in the top right corner.
You will now see a drop-down menu. Click About Me.
Click Edit My Profile once you are directed to your profile page.
Check the box next to Create new task alerts to turn on notifications for open tasks.
Click Save when done.