How can i run a Transation Expenses Detail report showing totals for each supplier

It's great to have you here, @david-powell.

You can run and customized the Transaction List by Vendor. It displays your transactions, grouped by vendor. I can guide you on how to do it.

1. Go to the Reports menu.
2. Scrolld down to the Expenses and Vendors section.
3. Double-click on Transactions List by Vendor.
4. Click the Customize button.
5. Set the date range of the report.
6. Expand the Filter section to customize the information you want to see on the report.
7. Click the Run Report button.

You can save the customization you've performed for future use. Also, you can watch this short tutorial to get acquainted on how to get the most out of your financial reports: How to Filter Reports: Customers, Vendors, & Products.

Lastly, I've added these articles to learn more ways on how to manage your reports:

• Filter, sort or total reports by Class

• Set schedule and email information for a memorized report

Always feel free to visit us here again if you have other questions about running reports in QuickBooks. I'm always here to lend a hand.