How to re-send external tester invitations on Apple's TestFlight service [closed]

Answer 1

Its a bit old query but the issue is still there. I have found an easy way out to resend the invites. All you need to do is to follow these steps:

1. Click on "Not available for Testing" and Save
2. Click on the Build that you want to test again. Save and Press Start Testing.

It will send invite to all the users. Hope that helps