1, there are too many people in Fudan to make an appointment. In order to control the flow of people, the reservation system will limit the number of people who make reservations. Once the number reaches the limit, the system will no longer accept new reservations.
2. The venue capacity of Fudan University is limited. In order to ensure safety and order, the reservation system sets an upper limit on the number of people who make reservations. Once you reach the upper limit, you can't accept new appointments.