I'm trying to configure game center for my app, leaderboards and multiplayer later. But my app store connect page looks different than on screenshots from docs. I don't have Leaderboards section, and in Multiplayer Compatibility i have no plus button. How to fix this?
You have not set it up done yet. Select Game Center
on Services
section.
Scroll down to Leaderboard
then +
to add a new board. Following a few steps to add name, id, format, sort order, etc.
About Multiplayer Compatibility
. Since you've not published any builds/other apps, you couldn't see it. It will enable for earlier compatible versions or even other apps within the same team ID.