i need to free up some ccu using the new matchmaking think for unity? how do i disable multiplayer on other projects so i can free up ccu?
CCU is Concurrently Connected Users and refers to the Master Server/Matchmaker system.
So, I dont think your question makes sense.
If you have multiple projects registered you could unregister them from the site.
I could have the wrong link here and if so I apologise; but I think you log in here
https://developer.cloud.unity3d.com/landing/ to manage your multiplayer services.