Hello
There are two types of resolution, the first is Secure Folder and the other is Dual Messenger. The "Secure Folder" is made for personal device solutions that do not support the DO MODE. On the other hand, the Dual Messenger supports DO MODE after allowing managed profile and setting up DISALLOW_ADD_MANAGED_PROFILE to false.
I am facing the same problems for 1 month more I searched many of times but if the solution doesn't find please post a simple way to a solution for this matter.Lulubox