Can I use a gmail address for my Apple ID?
I am having trouble changing my apple ID and I am about to cancel the email account that I originally used. When I tried to change it to my gmail account, I got a message saying that the email address is not available. Does that mean I can't use it or is there a problem with the system? Can I use my icloud address?
MacBook Pro (13-inch Mid 2009), iOS 10.2.1