Below you can see that testing for external testers are turned off:
same for internal testing:
but when I transfer app, one of the criterias are not me
Not sure if this is going to help,
Check Users and Roles > TestFlight Beta Testers
Do you have a tester who is testing the app that you want to transfer?
First, You must remove all build and user from TestFlight of that app. After its looks like below.
If you still not match last criteria than Sign Out and login again.
I've search for a long time and to me this worked:
To me this works. Hope help someone.
I just solved the transfer issue, you just need to expire your build from tester by following the steps below. and then app will available for transfer..
open your app and click on testflight then click on the icon of your app as shown in below screenshot.
The click on expire build.
Now you can transfer your app :)