How to - only display the price of approved PO (not change mode)

Hi,

Following are our PO release strategy

1. Release id : P has

a. Released indicator (tick)

b. Changeablity - 4

The above setup is working fine, means still after the approval users can change all the fields. New strategy is triggered once the values are changed.

Now the issue is business owner does not want the price, qty in change mode after approval. After approval ME22N to show

1. Price & qty to be in display mode

2. All other fields (except the one which affects PRICE) in change mode.

I tried to all the combinations, but after approval I get to see either all the fields in display mode or all in change mode.

Is it possible to display the price related fields only for the approved PO in ME22N.

Please advice

Thanks,

Raj.