Here's how to enable the notifications from Atlas Scheduling when you have a Samsung cellphone.
The path shown below should be the same in all Samsung devices. If ever you don't find the same steps, you can always refer to this website, which will explain the path according to your OS version.
1. Open your Settings
To do so, either swipe down on your screen in order to display a "cog" at the top-right of the screen, or look for the "cog" icon in your applications menu.
2. Apps
Once inside the Settings menu, you can click on "Apps", then scroll through your list of installed apps to locate Atlas Scheduling.
3. Notifications and Battery
Scroll through the options and select "Notifications", and ensure that "Allow Notifications" is toggled on. You can also set your preferences on how these notifications are displayed.
Once this is done, go back to the previous menu and scroll through and select "Battery", ensuring that this is set to "Optimized". You can also select "Unrestricted", however this will reduce the battery life on your device.