How to prevent the MDM profile from being removed on an iOS device (263302)

The option is located in the MDM portal UI under Settings | iOS Settings | Manage DEP Profiles | Select the DEP Profile name |  Edit Profile

To prevent users from being able to remove the MDM Profile:

1. Uncheck the option: "Allow MDM profile to be removed"  
2. Then click "Save"
3. The MDM Profile should then look similar to the image below

 Note: If the device is already enrolled in MDM before this change was made then the device will first need to be wiped and setup again.  The device will then be automatically enrolled in MDM during initial setup as a DEP Supervised device.

For additional information please see the video at the link below:

How to configure MDM management of iOS devices in the Apple Device Enrollment Program