Hi, Steven_ZA.
I appreciate you trying out the steps above. Allow me to share insight into how to create refunds separately.
In QuickBooks Online, you can use expense if it's an overpayment. But in your case, there is an invoice of 200. Either you can follow the steps provided by my colleague Jovychris_A or use a refund receipt and select the product used in the invoice.
For additional resources, let me share some links that will guide you on how to manage a customer credit or overpayment. From there, you’ll learn how to track excess payments, void or refund a transaction.
For other concerns about customer payments or refunds, post them again here. I'll be right here to help you. Have a wonderful day!
