How to backup multiple iphones with different iCloud accounts but same apple id?
I would like to back up 3 idevices each with different icloud accounts to itunes. But they use the same apple id so that itune purchases can be installed on each device (2 iphones and 1 ipad).
All I want to do is create a backup in case the phones need to be restored. I also want to back up before downloading iOS 8.
The Macbook Pro that I will back up to has one user and one itunes library.
Is this possible without mixing up address books and contacts etc? Appreciate if some one could direct me to detail step-by-step instructions if they exist or please tell me how I can do this.
Thanks.
iPhone 5s, iOS 7.1.1