To perform operations, such as restore operations, on an Office 365 application, you must open the application.
Procedure
On the Office 365 tab, in the Protected Data Sources tile, click the number of mailboxes, users, or sites that you are managing.
The Office 365 apps page appears.
In the Name column, click the app that you want to open.
Tip: The Type column displays the app type: Exchange Online, OneDrive for Business, SharePoint, or Teams.