You might have CoachAccountable schedule a Zoom meeting for you but later decide you don’t need it. You COULD delete it from within Zoom, but don’t. If you delete it there, CoachAccountable won’t know about it and with blithely go on showing the “join now” link to you and your clients.
But more to the point, there’s no need (after all, the whole point of this integration is to have things all in one place!). You can delete a Zoom meeting from within CoachAccountable; just go to modify an appointment that has the meeting set and click the “remove this…” button.