Approval for Inventory Adjustment

I would like to have an approval process for my Inventory Adjustment. I have check with NetSuite for this function and there is actually an ongoing enhancement voting however i am in need for this function.

My scenario is like this. My Finance Department Clerk will create an inventory adjustment  in the system at the end of the month after stock taking. BEfore she can save the transaction, she need to request for approval. Finance Manager will get the notification and review the adjustment and approve. The Clerk will get the approved alert and save the inventory adjustment.

I would like to know if anyone has ever tried to do a workaround or customization for this? Really appreciate if anyone can give me a solution for this. Thank you