To manage the notifications in any Android device (tablet or phone), just follow these steps:
(Note: Instructions may vary slightly depending on your device or software version.)
  • Go to "Settings"
  • Go to "Apps" or "Application Manager"
  • Tap on the "Manage apps"
     
  • Tap or search for the application you want to manage.
     
  • Select "Notifications", and then activate/deactivate the checkbox for "Show Notifications"