What are the Mandatory input parameters for FM HR_INFOTYPE_OPERATIONS to update PA0001

Hi All,

I am using FM HR_INFOTYPE _OPERATIONS to update the table PA0001, i am passing inputs pernr,begda,endda . But KOSTL (cost center) is not updating.

My question is to whether we need to pass all the input parameters like begda,endda,payrollarea,subarea,company code,cost center.

What are the mandatory input fields to pass to FM to update PA0001.

Can you please help me.

Thanks

Ravi.