Samsung Galaxy A20e
Android 9.0
Select help topic
1 Find "All"
Slide two fingers downwards starting from the top of the screen.
Press the settings icon.
Press Notifications.
Press See all.
Press the drop down list.
Press All.
2 Turn notifications on or off
Press the indicator next to the required app to turn the function on or off.
3 Return to the home screen
Press the Home key to return to the home screen.