Why won’t my App Store connect to my Apple ID

If you're having trouble getting the app to install or authenticating with your Apple ID, restarting your device and/or logging out of the App Store and logging back in again may help. Otherwise, you'll need to contact Apple Support directly since they manage all transactions and App Store processes on our behalf.

How do I connect my Apple ID to the App Store?

First tap Settings then tap iTunes and App Store. Then enter your own Apple ID and password. To add your personal Apple ID to iTunes and App Store.