Firm check box should not select automatically after launching the MPS/MRP

HI friend

when we launch the mps , that obvious that the planned orders are created with the firm check box enabled automatically but it should not happen automatically , how i can acheive it.

Oracle Applications Fusion Cloud - Inventory

Oracle Cloud/Fusion Procurement training will help you develop the fundamental skills required to set up and use the Procurement module. This training covers all the tasks, setups, forms and reports used in Procurement and related modules