I want to switch the Apple ID being used by the Apple App Loader.
I can't find a way to change the Account to be used in the App itself. Google search did not bring anything useful up. When i start the Loader App it gives me an error: "...Your Apple ID or password was entered incorrectly. (-20101)" I then can only choose "cancel" in the dialogue and this is it.
Context: I need this because the password of the Apple ID i was using previously has been changed and is not available to me anymore. This is because i was using the Admin Level Apple ID of my client in the past. Since my client decided he doesn't want to give away his admin account information any longer i need to make Application Loader use a different login (which i already have and which is working fine in iTunes connect)
Looking forward to get any hints on how this could be resolved. Cheers.
Did you try using Window -> Run Setup Wizard (shift+cmd+S) from the App Loader bar?
In Application Loader version 2.7 and after, you need
1) Click Window
2) Choose Sign In As...
来源：https://stackoverflow.com/questions/3556198/apple-application-loader-how-to-change-the-apple-id-being-used