sign in to your Apple Account
Sign in to your Apple Account to access Apple services such as the App Store, Apple Music, iCloud, FaceTime, Apple Books, and more.
You can sign in when you set up your Mac, or choose Apple menu > System Settings, click “Sign in,” enter your Apple Account email address or phone number, then enter your password. If you don’t have an Apple Account, you can create one.
You can view and change your Apple Account information, including your name, photo, contact information, password, security settings, and payment and shipping information.
Your information and content are available on all your devices where you’re signed in to your Apple Account. See the Apple Support article Sign in to your Apple Account.