You may want to remove device associations if, for
example, you are retiring or returning a firewall or Panorama appliance, or if you want
to associate it with another
tenant service group (TSG).
Disassociating
an app removes the product license from the device. This removes all associated
device telemetry, deletes the device configuration and licenses, and resets the
device to factory default. You should do this when retiring a device or moving the
device to a different tenant.