No TestFlight invite email gets sent for internal users

I set up my application for TestFlight. For external users it is waiting for review. But if I want to invite internal users, I select them and press invite. iTunes Connects says they are invited now, but none of the invited emails gets an invitation email.

Do you know what I am doing wrong?

Solution 1:

For new builds on the same version, once the build becomes available, I had to turn OFF testing for that version and immediately turn it back on. This instantly sent an Update notification to TestFlightApp, emailed the testers, and allowed users install the new build.

Solution 2:

This is an outstanding bug. A report has been filed, see details below. To get Apple to address this issue sooner, please submit a similar report through https://bugreport.apple.com

Solution 3:

I've been round and round on this as well. What finally worked for me was to clear the internal tester status on the user, double check that the account was removed from the Internal / External list and then re-enable tester status for the user. Invite as an internal tester then worked for that user.

Solution 4:

You have to fill the "What to Test" section. After you will be able to send invites for internal members.

Solution 5:

I needed to resend the invitation email to an internal tester. The following work for me:

deselect the invited tester and save. this remove the invite. re-select the same tester and save. this added the tester and re-send the email.

Also, you have to click on the link in the email to see the update. Otherwise, the TestFlight app still shows no app available until you click on the link. I found the email was in the spam folder in the first place ...