User specific price change authorization

hi experts,

I want to restrict particular user only for price change in "Saved PO " i.e. ME22N. and same user should be able to create Po through ME21N.

We do not use Release strategy for PO.

I tried to control it using Function authorization(Tcode-OMET) & Parameter ID- EFB, But it restricts user during PO creation (ME21N) to enter price.

Please, help me to resolve it.

regards

rahul

Edited by: RahulNsk on Mar 19, 2009 5:18 AM