I went through the steps given in the instructions when you use the Share icon from the AoG simulator to add testers:
- Added them to the IAM section of the Google Console with the Project -> Viewer Roll, using their E-mail
- Turned on Voice & Audio Activity
- Sent them (me, alternate account) the Share link
- Clicked on the Share Link sent to my alternate Gmail account and I definitely saw the "Testing Enabled" notification appear briefly.
- I also tried using the Simulator from a Private/Incognito window, a solution I saw on Stack Overflow.
However, whenever I try to use the invocation phrase, which definitely works for me from my developer account, I get the error "Sorry, that action is not available in simulation".
Can anyone tell me how I can add a tester successfully that can actually access my test app?