How do we get the full history of all transactions with a supplier?

You can run a Transaction List by Supplier report to track all recorded expenses, Ruth.

You can customise the reporting data to modify all transactions made to that specific supplier. To do this:

1. In your QuickBooks Online account, go to Reports and enter Transaction List by Supplier report.
2. Click Switch to classic view. Then, select the Customize icon.
3. Modify the Reporting period and other information. Also, ensure to choose Supplier under the Group by dropdown.
4. Once done, click Run Report.

If you want to send a copy of your data, you can set up an email schedule for a memorised report and print them externally.

If you need further assistance, just let us know in this thread.