The Notification List will view the Expense Submissions which are either in Not Submitted or in Error status.

To view the Notification List, click the Bell icon on the top panel beside the Search box.

If there is no listed notification, the Bell icon will not be visible from the top panel.

If you click the Notification bell icon from the Employers page, the Notification List will 
view the Expense Submissions for all the employers.
If you select any specific employer and click the Notification bell icon, the Notification 
List will view the Expense Submissions for that employer.