creating a purchase requisition of mrp type manually.

Hi

requirement is to create a purchase requsition of mrp type when the mrp run occurs.

In current scenario a purchase requisition for a material is created when a mrp run occurs in plant 'X'.

My need is to create a one more purchase requisition for the same material in a different plant 'Y'.

when trying to do so am unable to create a purchase requisition of MRP type .am able to create only a normal pr using bapi BAPI_REQUISITION_CREATE.

any suggestions to create a mrp type purchase requisition manually?

ram