In order to receive a notification when motion is detected, you must have to activate this feature at first.

Follow the steps below:

1. First, activate the motion sensor
2. Select MyStrom Motion Sensor by holding down the tile for a long time or by pressing the three dots
3. Then press "Settings" at the bottom
4. Set the slider for "Messages" to "On

Note: You must have allowed the Home app to send messages. If this has not been allowed, you can easily change it in your device settings. 

You have now successfully created the setting. You will now receive notifications when motion is detected.