I've tried building and running https://github.com/KhaosT/WatchActionButtonExample which works just fine.
In my own project however even with the StartWorkoutIntent implemented as per https://developer.apple.com/documentation/appintents/actionbuttonarticle the option for my app in the action button settings never appears, in the simulator or on a test device.
I've made sure WKBackgroundModes includes workout-processing and have fully implemented a StartWorkoutIntent (both a real implementation and also tried it with a dummy implementation from the KhaosT/WatchActionButtonExample repo). Despite all this I still can't get my app to appear in the action button settings screen.
Is there anything I can do to further debug this? Has anyone else run into a similar issue? I've just spent the entire day trying to make this work...
Did you ever figure this out? We were able to get our app to show up for the action button and then it just disappeared from the action button list a few weeks ago. We can't find anything that has changed and we are also able to get https://github.com/KhaosT/WatchActionButtonExample to work just fine.