When an agent is uninstalled, but the device is not deleted from the console, upon reinstallation the device is added as a duplicate.

This should not only re-register itself to the existing device, but the fact that a device can be deleted at all from the console is concerning. We don't have a need for a full lifecycle manager, but we do expect that our RMM is fully capable of maintaining strict device inventory based the serial number. It shouldn't be possible to "lose" a device. We need the bare minimum of lifecycle tracking to include the device creation, any changes (including hostname changes), and device archival.

At the very least we need the ability to merge devices from the admin console.

Without this, I cannot trust the inventory in Atera to be accurate... sometimes devices go offline for a reason, like spare PC's. Atera can't be forgetting about these, and it definitely cannot be losing track of anything because an agent was reinstalled (a common troubleshooting step for any software, yes?).