Autolock bookings 

Booking rules tab

 Enable this option to switch on the connection between the services. This automatically locks the time slots of all the services on booking.

For example, few service providers use one equipment, in this case, it will be logical to make the service unavailable for booking on certain time if one of the services was booked at this time.

Autolock is independent of duration or business hours because the algorithm analyzes the intersections between time slots.