On iOS, Plugin uses iCloud Key-Value storage for storing data. When you register an app on iOS dev portal, you need to enable the iCloud in capabilities section.
If you have registered app manually and not from xcode, you need to enable iCloud capability
Plugin automatically sets the iCloud capabilities while exporting from Unity on every export.
In-case if you have a different setup where you want to enable manually, you can do the following steps
Open Xcode project and navigate to Signing & Capabilities tab for the main target
