InformationThis recommendation pertains to managed apps storing and syncing data through iCloud.
This recommendation addresses data leakage. It prevents a user from installing an app that is managed by the organization on a personal device and having iCloud sync the managed app data to the personal, non-managed app.
Syncing managed app data between multiple managed devices will not be possible.
SolutionOpen Apple Configurator.
Open the Configuration Profile.
In the left windowpane, click on the Restrictions tab.
In the right windowpane, under the tab Functionality, uncheck the checkbox for Allow managed apps to store data in iCloud.
Deploy the Configuration Profile.