A push notification is an alert that shows up a driver's iPhone or iPad. 

If the device is locked, it will show up on the lock screen.

If the driver is using a different app, it will appear at the top of the screen, then go away after about five seconds.

If ParaPlan is the active app, it will show an alert.

When a driver gets a notification, they should activate the alert by swiping it from the lock screen or tapping on it from the top of a screen from a different app. This will trigger ParaPlan that there was a change and the manifest should be updated.