Deferred removal is a two-week grace period in which apps will not be removed from a device. Instead, they will be blacklisted for two weeks before the app is removed. The deferred removal feature is a safety net in case scoping or something similar goes wrong. Instead of instantly removing all apps from the device, they will be placed in a blacklist. You can simply add the scope back within the two week period and prevent the user from losing all their personal in-app data on the devices.
Viewing Apps Marked for Deferred Removal
You can find out if the App is marked for deferred removal in the following ways.
Go to the device itself
Go to the scope of the app that was removed
How do I revert this status and keep the apps installed?
You can revert the deferred removal by adding back the scope that was removed, or by returning the device to the smart group which had the Apps scoped.
How does this work for Documents?
Deferred removal does also work for documents, however, they won't be placed on a blacklist as documents can't be blacklisted. You'll have to head over to the document's overview to see if the document will be removed after 2 weeks.
What about the VPP license?
The VPP licenses are withdrawn and the App will enter its VPP license grace period (which lasts 30 days).
I have removed the app from the device and I do not want to wait two weeks before the app is removed, can I force delete the apps?
To force delete an app, go to the devices' Managed Apps overview and click Delete deferred Apps from this device in the top-right corner of the page.
You can also do this from the Apps overview page with a bulk action Delete deferred Apps from devices, shown in the screen shot below.
Note: There is currently no way to disable deferred removal or to set a length of deferral yourself.