How to restrict the user in MIRO for not modifying price
My requirement is How to restrict the users in MIRO screen for not modifying Material Prices of only the for specific ROH types .
For example :
Valuation class RM description
3021 RM - A
3022 RM - B
3024 RM - C
when ever we procure the above Raw materials A,B and C and
the Quantity of each Raw material @ 10 units and value @ 1 INR for each unit
RM - A procured qty 10 @1 total price is INR 10
RM - B procured qty 10 @1 total price is INR 10
RM - C procured qty 10 @1 total price is INR 10
total price of PO is INR 30
when we received invoice material prices are assume it INR 1 is excess for each material.Now the invoice price for each RM has become INR 11.
in MIRO we want restrict the user to change the price from INR 10 to 11.
suggest the best possible ways to restrict in MIRO screen
Thanks & Regards