Block pricing screen in sales order

Question:
We're getting quotes from SIEBEL into SAP, and sales orders for these quotes are generated in SAP. Requirement is, SAP system should not allow the users to change the pricing procedures in the pricing screen and so if the pricing screen on the sales order is blocked ( or made
read only ), this should suffice the requirement.
I'm new to screen-exits. Has anyone done this before? How can I approach this problem?
Thanks for your help,
Meher.
Answer:
Hello
I'm working with 46C and i have user exits in MV45AFZB and MV45AFZZ.
Have a look at them, you'll probably find what you're looking for...
_________________
Have a nice day!
Benoît

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