267 votesnoted · 11 comments · Ideas » Mobile Device Management (general) · Flag idea as inappropriate… · Admin →ON commented
@Brian : There is already a feature that deletes old devices, called "Automatic device cleanup". Unfortunately, we also found it is not working like explained in the docs, and have a ticket open since few days on this...
The stuff that you or Sergey noticed, is not a bug : every device is uniquely identified through its "device.id", not through its serial number.
Unfortunately, there is no technical way for Intune to magically guess if a device object must be immediately deleted from the DB, after you enroll it one more time.
For mobile devices, it is obviously difficult to "clone" such hardware. But if you are working with Windows VMs, and especially with snapshots, then you get the point that 1 serial number can represent more than 1 device from Intune device object point-of-view. Not even talking about working with snapshots, make it even more difficult to keep 1 unique Intune record.
FYI : nearest MDM Microsoft competitor operates the same way : if you enroll several times the same device, you end up with several times the same SN in your DB. This is just a habit to modify, compared to what you are used to in on-prem AD world.
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