Settings within the Social Networking application itself may need to be changed to make sure the new notifications show up in the Android Notification Tray.
There's been an issue identified with Android and Microsoft where an Android device integrated with an Active Sync email that enforces policies will suddenly lose the capability to sync email with the mail server.
We may be able to assist determining some of these settings using Account configuration: Sync interval: This setting specifies how often the Black Berry Hub application will ask for new items (Mail, Calendar, Contacts – Memo/Task if available for integration type).
Use push if supported: If your account supports a protocol that supports push (IMAP, MS Active Sync, etc) the email server will alert the application when new mail is available as opposed to waiting until the next scheduled time (Sync interval).
Create a Home screen shortcut: This is enabled by default and adds a shortcut, specific to this account, to your home screen Notify me when an email arrives: This setting controls whether or not you will be alerted when a new message arrives.
Each account that has been added to the application can be individually configured to alert how you would like it.
Notifications can be adjusted via Settings/Sound & notification, or within the application settings.