iTunes for Mac: Manage your iTunes Store account
To buy items in the iTunes Store, you need an Apple ID. If you don’t have one, you can set one up using iTunes. If you’ve purchased items from the Apple Online Store or ordered a photo book, or if you have an iCloud account, you already have an Apple ID.
Set up a new Apple ID
Choose Account > Sign In, then click Create New Apple ID.
If you have a PayPal account, you can use that as your payment method when you enter your credit card information. (PayPal isn’t accepted for payment in some countries.)
Sign in to or out of the iTunes Store
After you set up an Apple ID, you can sign in to the iTunes Store to buy music and video, view or change your account information, and see your purchase history.
When you finish using the store, you can sign out to prevent anyone else who has access to your computer from making purchases using your account.
Choose Account > Sign In (or Sign Out).
Change your account information
You can change your Apple ID name, password, or billing information at any time.
Choose Account > View My Account, and sign in.
Click Edit.
Make your changes, and click Done.
Your changes take effect immediately, and apply to all apps in which you use your Apple ID.
View your purchase history
Items you purchase from the iTunes Store are added to the Purchased playlist in iTunes. However, because you can add items to or remove items from this list, it might not be accurate. You can see a list of all your iTunes Store purchases.
Choose Account > View My Account, and sign in.
In the Account Information window, click See All (below Purchase History).
The purchase history shows purchases made using this account, with your most recent purchases shown first.
To view details of previous purchases, click the arrow to the left of the order date.
If your purchase history seems incomplete, make sure you’ve clicked the arrow next to each previous purchase to see all your purchase history information.
If your purchase history seems to be incorrect, or you believe you’ve been charged for an item you didn’t buy, visit the iTunes Store Support website.
If you delete the Purchased playlist, iTunes creates a new one when you buy an item from the iTunes Store.