Enable an app version for Game Center

Apps offering Game Center features need to include the Game Center entitlement in the entitlements plist and have Game Center features configured in App Store Connect before they can be submitted for review.

Note: Games distributed on alternative app marketplaces in the European Union will need to also be available on at least one App Store storefront to take advantage of Game Center functionality.

Required role: Account Holder, Admin, App Manager, Developer, or Marketing. View role permissions.

From Apps, select your app.
In the sidebar, click the app version you want to enable for Game Center.
Scroll down and select the checkbox next to Game Center.

You can now add leaderboards, leaderboard sets, achievements, and multiplayer compatibility to the app version.