Right now, I'm trying to add someone on my iTunes connect team so I can make him an internal tester for my app, but the person who wants to test it has a yahoo email associated with his Apple ID. I tried doing the usual routine
But this only seems to work for gmail accounts. Is there a way to get past this? I tried adding his actual email without the + sign and letters, but it says the email is already associated with an iTunes Connect user.
Any help or advice would be appreciated. Thanks.