Connect with and learn from others in the QuickBooks Community.
Hi there, trevor0285.
You can create a Credit memo transaction to put credit into your customer's record in QuickBooks Online (QBO). I'd be glad to guide you through the steps.
You can check this article for more information: Enter and apply credit memos and delayed credits in QuickBooks Online.
Also, for future reference, you can check out: How to correct a customer's credit card payment that was processed twice by mistake.
Count me in if you have questions in mind. Have a wonderful day!