i use automatic approved appointments. They have a minimum capacity of 2 and a maximum of 6. And customers can book below minimum threshold set to true. So when the first customer books the appointment is 1/6 and pending. when another customer books its 2/6 and under the appointment view of amelia it automatically switched to approved wich is nice. also in the old school customer panel it works it shows approved once the minimum threshold is reached only in the new 2.0 customer panel it automatically goes to approved even when the appointment is standing 1/6 in the database. even if under appointments there is a pending state.