Seats are user slots in your organization.Seats are charged per billing cycle, pro-rated to the end of the cycle. Thus when adding a new user, a newseat will be added to your subscription and you will be charged for the remaining time in the cycle (until end of the month or end of the year).When removing a user, the seat remains available until the end of the cycle. You can then add a new user that willreuse the available seat. By default, seats are managed automatically, but you can activate manual control of the number of seats.