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"
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- Tap or search for the application you want to manage.
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Select "Notifications", and then activate/deactivate the checkbox for "Show Notifications"