How do I get the location sensor to send me a location with the app in the background

[Peter (Moderator)]

That is not possible with any App Inventor based builder at the moment.

Backgroud Activity

There are many misconceptions about the term “background”. Background as mostly used means only that the app is not visible (eg after pressing the home button or after time-out / in sleep mode), but not closed. “Background tasks / services” means that an app can also execute somthing if the app is closed. That’s is indeed not possible with AI2 & its clones (Kodular, Thunkable, …).