You can change the maximum occupancy of a booking to allow more people to be added to that booking without affecting the service.
Start in your calendar:
- Click on the booking
- Click the customers tab
- Click the person icon
- Click the + and - icons to change the maximum occupancy and click save.
Note: changing the occupancy of the service won't affect the occupancy of any new bookings for this service. A booking will honour the settings of the service when the booking was made.