Let's match your bill payment instead of your bill, jwbards.
QuickBooks automatically downloads the latest available transactions every night around 10 PM PT. Once downloaded, you'll have the option to match your payment. To do this, you can follow these steps.
For future reference, you can run reports to know the aspects of your business. Please check this article.Run Reports In QuickBooks Online.
Fill me in if you need anything else. I'd be happy to help.