Oftentimes you have to create a booking manually from the workorder without going through the schedule board or assistant. The typical use case is where a 3rd party performs the work. They assign their techs on their own system and then just tell you the resource and date. To see these on the scheduler you have to create a booking manually from the WO.

When doing so the WO's total estimated duration does not get inherited by teh booking and so you have to enter it manually. It is also not possible to configure this easily as a mapped field.

This behaviour should change so that the Booking inherits the duration from the work order as it does elsewhere.