Alan,
Few comments:
1. For the condition type in focus (price): In V/06, condition type, field "Manual entries" you can try option D (Not possible to process manually).
2.
We have encountered an issue where users have been altering the sales price of an item in a Sales Order to prevent it from going to an approval stage and then once it is created they change the price back to the original.
Please confirm - When the sales order is created, there is the logic of if some amount is passed then sales order has to be approved.
(It seems that) In change mode (VA02) this logic is not written / implemented.
Why is it not implemented for transaction VA02?
Can it be possible to include VA02, VA03 in the code?
(VA03 because from display mode, the sales order can be taken to Change mode)