REQUISITIONER MRP

HI EXPERTS,

I HAVE THIS PROBLEM:

WHEN I RUN MRP, IN PURCHISING REQUISITION GENERATED, THERE IS THE REQUISITIONER ALREADY VALUED WITH MRP CONTROLLER.

CAN I CREATE A PURCHISING RQUISITION WITHOUT REQUISITIONER ALREADY VALUED WITH MRP CONTROLLER? I'D WANT TO CREATE A PURCHISING REQUISITION WITH REQUISITIONER = BLANK.

CAN YOU HELP ME?

THANK YOU

GIANLUCA