Need to remove prospects from campaign continuously for whom Rep activity has been logged in last two days (last two days would be auto-updated so that I don't have to manually set every date). The only time operators I'm seeing are these. What might my other options be to achieve this?
You can use the "date of activity: in past 2 days". This will look at an activity logged in the past 2 days regardless of when the activity due date is. The "due date" is what you would want to use if the actual date of that activity (meeting date) needs to be in the past 2 days.