Adding Sandbox Tester in iTunes Connect with an existing Apple account

Question

I\'m trying to add sandbox testers in iTunes Connect. But I\'m getting this error:

The email address you entered already belongs to an existing Apple acco

Answer 1

June 2020 Solution

• You need a different email address than your standard AppleID. If your AppleID is name@gmail.com, then you have to use a complete different email like othername@gmail.com.
• If you use gmail, you can use many test accounts with the same email address (but different from the standard AppleID). Just add a dot to generate multiple test users with the same email address:
  • othername@gmail.com
  • o.thername@gmail.com
  • ot.hername@gmail.com
  • and so on