I was trying to use the below mentioned functionality which is available in R12. But the same is not working. Could anyone of you let me know whether is there any profile optoion to use this or anyone has successfully used the below mentioned functionality.
"Users can now manually change prices on purchase orders or releases even if there have been receiving and invoicing activities against them. This greatly simplifies the procurement process for goods or services where pricing is volatile and changes often need to be made after the purchase order has been created and possibly even after a purchase order has been received or invoiced."