How to Add Test Users to a Facebook App

When a Facebook app is not live, only admins of the app can test the bot. For bigger bots, clients may want to test flows on the production bot before going live. In order to do so, you have to add clients as 'Testers' of the Facebook app.

Set-up

Go to https://developers.facebook.com/apps/ and select your app
Head over to ‘Roles’
Click ‘Add Testers’
Add testers by using their fbid or username

How to finda fbid / username

Your fbid / username is what comes after the '/' when you go to a Facebook profile. If you have set a username, your username will populate otherwise it will be an id of numbers.