I'm currently trying to make a Messenger Bot with the Messenger Platform. I have a Facebook page, app, everything set up, it currently works when I (an admin for the app) message it. So, I made a few test users to test it with more users. But, whenever I login as a test user, I can't seem to message the page. As a test user, I can't access the page, and a direct Messenger link gives an "access denied" page.
As an admin, I tried to add this test users as a "Tester" under the roles, but I also get more "access denied" messages.
So, is there a way to use a Facebook Test User to interact with my pre-approved Messenger Bot?
A working workaround was described here: http://developers.facebook.com/bugs/230322797329131/?hc_location=ufi
Kudos to Alex Garcia himself :)
来源：https://stackoverflow.com/questions/38604436/can-you-use-facebook-test-users-to-test-a-messenger-bot