Can you use Facebook "Test Users" to test a Messenger Bot?
<p>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 <a href="https://developers.facebook.com/docs/apps/test-users">test users</a> 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.</p>

<p>As an admin, I tried to add this test users as a "Tester" under the roles, but I also get more "access denied" messages. </p>

<p>So, is there a way to use a Facebook Test User to interact with my pre-approved Messenger Bot?</p>