If you want to manage ignored notifications, proceed through the steps listed below:
1. On the left navigation menu, click App Management. The App Management screen opens.
2. In the Ignored Notifications block, click the Manage button.
With the Ignored Notifications screen displayed, you can see the a list of actions you have ignored working with Notification Center.
To remove an action from the list and restore it to the Notification Center, select the check box it corresponds to and then click Remove.