Let me share additional information, @AngelaMcDaniel

You can generate and customize the Transaction Detail by Account. This way, you can view a complete list of your open Accounts Payable transactions billed to your customers. I can guide you on how to do it.

1. Go to the Reports menu.
2. Scroll down to the For my Accountant section.
3. Choose the Transaction Detail by Account report.
4. Click the Customize button.
5. Set the Report period.
6. From the Rows/Columns section, click the Change Columns link.
7. Make sure to mark the following tickbox: 
8. In the Filter section, mark only the expense type of Transactions.
9. Select the name of the specific Customers from the drop-down arrow.
10. Click the Run Report menu.   

Also, you can modify the name of the report to suit your business needs. Just double-click on the name of the report.   

Once completed, you can save the customization you've created for future use. You can read through this article to get the most out of your financial reports: Customize reports in QuickBooks Online.  

Always feel free to drop your comments below if you have other questions about generating reports in QuickBooks. I'm always here to help.