May I suggest a few things.

Allow for a merchant to denote an item scanned/rang in on the register screen as a *refund/exchange. If the total amount is negative, the "PAY" button is inactive, a "refund" button appears and then the CREDIT is issued back to the customer. An option on the item screen near discounts or something to denote it as a "refund/exchange" item is what would make most sense.

Our issues right now include returns on BOGO 1/2 OFF sales, partial refunds, exchanging for other items with a different price and the inability to attach an item to a manual refund which really hurts our inventory coming in and out. A solution like this would solve all 4 of those problems. This is especially prevalent in the RETAIL SPACE. This could help Clover and thousands of retailers across the globe as I know they are all experiencing the same problem! Please advise. Thank you. - Colin

I've created a mock up:

https://community.clover.com/questions/21248/returns-exchanges-suggestions-coming-from-a-retail.html