IW32 control data tab cost varaiant actaul and cost varaiant planned field

Hi Team,

In my preventive maintenance order , in control data tab cost varaiant actaul and cost varaiant planned field is not avialble it is hidden , but comming in PM01 order tye.

Tcode OIAN for preventive maint. order type

Cstg variant actual CAUFVD-KLVARI

Cstg variant planned CAUFVD-KLVARP

Input indicator is selected.

What may be the reason.

Thanks in advance.