LSMW Error in PA40

Dear Experts,

I am facing a problem in lsmw. While Performing hiring action through lsmw.

Its update the position field unit in infotype 0001 .

But when i checked from PPOME. Its Still Vacant. Postion is not assigned to person.This error only coming In LSMW when i try to do manual its didnt give me error.

Regards

Jazib Tariq