While accessing a Microsoft Audit and Control Management Server 2013 website, you may receive this message:
Sorry, this site hasn't been shared with you
This message is displayed if you do not have enough permissions in ACM to access the site.
To allow access to create a new site, add the user as a Central Administrator:
To allow access to manage a site, add the user as a Site Administrator:
To allow access to edit folder properties or view file details, add the user as a Folder Manager or Viewer in the Folder Properties for the Monitored Folder. Folder Managers have permission to edit folder properties and view file details, while Viewers can only view file details.
Also see the following article:
ACM Server error "Sorry, this site hasn't been shared with you"