How Can We Preserve Historical Absence Duration Without Historical Work Schedules?

We are loading historical absence records into Oracle Fusion Absence Management and need to retain the original absence durations from the source system.

Historical work schedules are unavailable, so Oracle recalculates the duration using the worker’s default work schedule. Our requirement is to preserve the historical duration—for example, an absence with a source duration of 4 days should remain 4 days, regardless of the date range or default work schedule.

We are storing the historical duration in an Absence Recording DFF and attempting to return it through a Global Absence Type Duration formula attached to the absence type’s Conversion Formula