This I believe is for person detection… If you are not a Cam Plus user Alexa will give you that message, but… there is a new Cam plus Lite option that I believe will give you person detection on the Wyze Cam outdoor. If you have not enrolled for that yet I would highly suggest it. @gyzmo put together a nice step by step on how to enroll if you wanna check it out. Cam Plus lite non functional - #3 by gyzmo
More Cam Plus Lite info here
Still looking at the WCO on Alexa item.