Disabling scheduling engine logic for data import

A system administrator can set the SM_SetDefaultScheduleAsExternal preference to True to turn off the scheduling engine logic so that when importing schedule data from an external scheduling application, the data won't conflict with the scheduling engine logic. Scheduling engine logic enforces scheduling constraints, such as ensuring that data doesn't exceed a schedule's date boundaries or preventing conflict when creating schedule task dependencies.

Once the schedule data is imported, it is important to set the SM_SetDefaultScheduleAsExternal preference to False so that schedule data is appropriately constrained.