Thanks for getting back, @mgiampietro.

Allow me to chime in and help share additional details about the Purchase by Vendor Detail report.

In QuickBooks Online, this is only the available AP aging report that'll show the customer details. If you're using Simple Start or Essentials, you cannot generate this specific report. Please refer to this article for more information: Report comparison between QuickBooks Online subscriptions.

If this something that your company needs, you may need to use the QuickBooks Online Plus version.

You can check out our QuickBooks Plan & Pricing site for more information about the different versions in QuickBooks Online. You can also get our phone support's contact information through this site if you need further assistance.

As always, please don't hesitate to visit the Community again if you have other questions about your Accounts Payable report. You may also contact our chat support through this link: https://quickbooks.intuit.com/community/Help-Articles/Contact-the-QuickBooks-Online-Customer-Support....

I'll always be here if you need help. Best regards.