I am looking to get a notification, either through an app or SMS when the Hue Motion Detector activates., particularly when I am not home. How best to do this?
It is not possible to get a notification due to limitations on the Philips Hue bridge. This is something Philips Hue would need to add support for first.
See also:
It is possible through an Alexa routine.
I set my work time as time slot to notice me if a motion is detected. Works perfectly
I had my echo 4th gen sending SMS and saying someones in driveway when echo first detected the outdoor motion sensor (with an alexa routine). then she quit/ it quit working and I cant get it back