CKKA_COSTING_PROCESS to update Unit Costing

Hello Experts,

I have to create a Unit Costing Estimate for the Order created using 'BAPI_CONTRACT_CREATEFROMDATA'.

I have tried to execute the FM 'CKKA_COSTING_PROCESS'. This is giving me a pop-up to send the Cost Variant. Since I'm using this in report, I have to hide the pop-up..

Can anyone suggest on how to avoid this pop-up ? If possible can anyone share the fields that must be passed to this FM so that I could check where I was going wrong ?

Also, Do I have to call Commit explicitly for the changes to be saved ?

Thanks and Regards,

Kiran