InformationThis recommendation pertains to Apple's managed app implementation.
The terms 'managed' and 'unmanaged' refer to app classifications made through Managed Open In, a feature of iOS 7 and later. Managed Open In provides for data containerization. Institutionally provisioned apps are designated managed. Apps elected by the end user are designated unmanaged.
Limiting data transfer from the unmanaged user app space to the managed institutional space limits institutional resources from being employed for personal use.
Solution1. Open Apple Configurator.
2. Open the Configuration Profile.
3. In the left windowpane, click on the Restrictions tab.
4. In the right windowpane, under the tab Functionality, uncheck the checkbox for Allow documents from unmanaged sources in managed destinations.
5. Deploy the Configuration Profile.