Hi @Andreas_Udby_Anderse, welcome to the community. I am not directly familiar with Neato vacuum, but there’s a SmartThings community developed smartapp/device handler available for it.
Meanwhile, you may also control it via Alexa Routine. You can create an Alexa Routine to start the vacuum as the action. Install Voice Monkey in Alexa, and configure a “monkey” to trigger the routine, and use HTTP Action in Rule Engine to call this “monkey”.