2.3 Apple Game Center
2.3. Apple Game Center
This task is only required if you are using Apple Game Center authentication.
2.3.1. Apple Developers Site
Log in to the Apple Developer site (https://developer.apple.com) and log in.
On the 'Certificates, Identifiers & Profiles' tab, select 'App IDs'.
Select the App ID you want to use Game Center Authentication to enable the Game Center feature.
2.3.2. Itunes Connect Settings
Log in to Itunes Connect (https://itunesconnect.apple.com/) and log in.
From the menu, select the "My Apps" item.
Select the app you want to add Apple Game Center authentication. (If not, you have to create it.)
Select "Game Center" in the "Features" tab.
Enter the appropriate key value in the 'Referece Name' - 'Group Reference Name' field.