Data is not coming correctly through delta from DSO to Cube

HI All,

When there is change in Org. Unit, Job or any characteristic of employee then the the delta of data source picks that change records.

I have used DSO before Cube. Now in DSO active table have one record against the Employee and same Schedule hours as ECC have.

But while loading to the cube, this data of schedule hours will get added to existing schedule hours  of Cube , which makes the schedule hours double for that Employee. For exmaple.

DSO Data.

Emp NO.     Date Org. Unit     Sch. Hrs

1                    ABC                              16

CUBE Data

Emp NO.     Org. Unit     Sch. Hrs

1                    ABC               16

Now Employee Org. Unit get changed to XYZ.

DSO Data.

Emp NO.     Org. Unit     Sch. Hrs

1                    XYZ               16

CUBE Data

Emp NO.     Org. Unit     Sch. Hrs

1                    ABC               16

1                    XYZ               16

I need data as it is in the DSO.

Please help, thanks in advance.

Arvind