If you use Push Notifications and want to enable alerts for wherever you are, you can set the location you are interested in getting alerts as "Follow Me." Follow me is your current GPS location. When you use Follow Me, the application will periodically poll to determine your location in the background to ensure that you get push notification for the correct location. If you do not use the Follow Me option, our application will never use location services when it is not being actively used by the device itself or an associated Apple Watch.
Follow me requires that your location services setting be set to "Always".