Mar 210, 2021. Trying for DAYS to get this to work. I've reinstalled the OS on every device: my iMac, my iPhone 12 Max, the Apple Watch... everything. Oh how I love spending weeks developing an app only to be blocked from progress. UGH! Is anyone at Apple actually monitoring this thread?

Did you ever find a definitive answer to this? We have a very similar scenario and can't seem to get good guidance from Apple before we invest in implementation.