@jackie.marler I had this come up in one of my implementations. They needed to track counter sales with payment via currency. Create 2 custom transaction body fields. Amount Tendered and Change Due. The Amount Tendered is the amount of currency the customer is giving you. Put that value in the field. Then create a formula in the Change Due field. The formula is: NVL({custbody_amounttendered},0)-{total}. Make sure you uncheck the "Store Value" box. That way you can track how much change was given.