Creating Unfirmed Purchase requisition Using BAPI

Hi,

Whenever we create purchase requisition manually or using BAPI_PR_create it automaticaly gets firming indicator. Firming indicator is displayed in MD04 as *

We want to create unfirmed purchase requisition using BAPI is there any BAPI available? As BAPI_PR_create does not has this feild

Or anyway we can uncheck firming indicator for purchase requisition automaticaly?

Regards,

Santosh