Edit: After half day, my wife’s Mac started having the same problem. I have then applied the solution that I found in the Apple
Use Menu bar to Toggle your iTunes Accounts
Typically, when someone brings out a hack involving AppleScript and a little process of reading the manual, it is followed by a GUI version in just a few weeks. A Reddit user created an AppleScript that allowed users to toggle between several iTunes accounts just by using a shortcut- or even manually running the script.
A lot of us have faced it. There are many apps and music tracks on the iTunes international store that we cannot access due to our location. This is why we have to create different fake international user accounts. Although it is not acceptable by Apple, but it still works, providing you do not choose a payment system in iTunes.
And then there are some people who create legitimate accounts and tie them with different types of purchases. Whatever your reason for various accounts may be, iTunes accounts toggling is a slow process and might frustrate some users- especially when they have to switch too soon between various accounts. The iTunes app isn’t exactly for using several accounts and you have to enter email and account password before you can sign in to another account.
This AppleScript we talked about is a nice way to toggle between user accounts while iTunes will fill the required fields automatically. The solution we have today is given by Nature’s Eye Studios and it gives the same idea as a lightweight application that sits in the menu bar, listing all iTunes accounts that are organized according to your location. You are free to create as many user accounts as you wish from the settings. Then the app will let you toggle between the accounts by selecting an account from the dropdown menu in the menu bar.
This app is a bit more stable than AppleScript, and is more insightful than launching some script made for every account that you hold. You can download the iTunes Account Switcher and start using it.
How often do you have to switch between several iTunes accounts? Hope this tip is helpful for you.
Tricks & Tips