Thanks for coming here, wendybertram.
I'd love to help you achieve your goal but would you mind telling me more about it? Do you want to reverse both Accounts Receivable and Accounts Payable? Is the customer happen to also be a vendor? I'd appreciate any additional details that you can provide so I can help you out. In the Community, we have trained support specialists that can answer QuickBooks-related questions.
You can visit this article for more "how do I" questions and tips while using QuickBooks Online: UK Help Articles.
Anything else you need help with can be answered here in the Community. Just let me know and I'd be happy to assist. Have a good one.
