Great job keeping on top of what you owe to your vendors as it's an important part of business. I'd love to help you get this set up so you can keep your business running smoothly.
I suggest using the Supplier Balance Detail Report. This report is useful because it shows what you owe to the vendor as well as what bills still need to be paid. You can access this report by going to Reports>What you owe>Supplier Balance Detail. Another report you can also try is the Unpaid Bills Report. You can customize the report to include that information or even what time frame you want to look through. This can be done by following the steps in this link: https://community.intuit.com/articles/1771278
If these steps don't get the report you want, you could also look into getting a third-party app. There are plenty of compatible apps that can auto-generate reports or track unpaid bills. You can find a list of those apps in the Apps tab in your QuickBooks Online account.
Hope this was of help to you.
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