How to assign & changed org. unit to employee Id

Hi

We want to move some employees from one organizational unit to newly created one in transaction code PPOM_OLD.

In PPOM_OLD i created new Org. unit ,assign position then assigned existing employee pernr.

But when i see in PA30 the organizational unit remains same.

Even when i observed in PA0001 table i can see two entries for one employee number the old entry is with organizational unit where as new one doesn't have organizational unit at all

Please guide me how can i do changes.

Best Regards