If a record with absence time type is imported into the system through external time data or external time record (time sheet import), it will not automatically create an absence.
SuccessFactors Employee Central
Currently, creation of absences through time sheet is only supported through the 'Add Absence' button in the UI, and not through import.
If you would like to have this feature, kindly raise an enhancement for the same:
Import, time sheet, external time data, create absence, external time record, time off, employee central , KBA , LOD-SF-EC-TMS , Time Sheet , Problem