I created a DialogFlow app that works perfectly in my developer account.
But I need to test it as another user, so in my Google Action simulator, I added another test ac
This error message is quite misleading. I have encountered this error a couple of times, and generally the problem was with one of the privacy settings in my Google account.
In this case you should go to https://myaccount.google.com/activitycontrols, confirm that you are logged in using your test account, and make sure the following are enabled: