Why Keep an Oracle Learning Offering Overbooked

You might want to keep an offering overbooked if you know that you'll eventually withdraw or move active learners to the waitlist. Keeping the offering at maximum capacity, prevents other learners from joining or the waitlist from automatically filling empty seats.

You might also want to keep it overbooked if you know that you'll be changing the venue to accommodate a larger audience. This way you can activate learners and then increase the maximum capacity to fit the number of booked seats.