Amazon.com - iRobot Roomba i7+ (7550) Robot Vacuum with Automatic Dirt Disposal - Empties Itself for up to 60 days, Wi-Fi Connected, Smart Mapping, Works with Alexa, Ideal for Pet Hair, Carpets,
Why factory reset your robot and how to do it?
Will the map remove this non-existing space? : r/roomba
iRobot on Twitter: "@leviz71 Great question, to remove a robot from the app simply navigate in the app to Settings ➔ Remove "Robot Name". We can also help keep your robot working.
New Roomba i7+ Has Persistent Maps, Selective Room Cleaning, and Automatic Dirt Disposal - IEEE Spectrum
Removing a Robot from your App – Ecovacs Customer Support