There are multiple reasons why you would not receive Atlas Scheduling notifications. Here are the main ones.

Your Atlas Scheduling notifications are not set correctly. Click here to learn how to manage your notifications.

Your phone notifications are deactivated. You must verify under your settings that Atlas Scheduling notifications are enabled.

If you have a Samsung, you energy saving settings may affect notifications delivery. Here is how to solve this problem.

If the two previous steps have not resolved the issue, try uninstalling and reinstalling the app.