Enhancement for me53n through BADI

Hi Experts,

I need to check the Open order and closed order item in ME53N t-Code(PR) through Quantity and quantity order filed. Now the problem is Order Quantity value is exceeds than quantity.if Quantity value is equal to Order Quanity the order should be closed. If Quantity value is lesser than order quantity the order should be in open state.

Thanks

Rajesh