How to set Approval for Scraping material in QA32?

Dear All,

My requirement is, in QA32 transaction, after UD for the inspection lot, if user place the stock in SCRAP then system should not allow him until an approval get from authorized person/user.

In QA32 transaction, after UD if user book scrap quantity against the lot quantity which is to be cleared then system should not allow user to save the transaction until approval from authorized user.

Please guide me, How to do it?

Thanks,

Naresh