I need to delete dummy clients that I created during training, So i can have a clean set of books again?

Hello, Paulas. Please note that in QuickBooks Online Accountant, you can only make your clients inactive to hide them from your active client list.

Here's how:

1. Navigate to the Clients menu from the left navigation panel.
2. Next to the client name, click the dropdown under the Actions column.
3. Select Make inactive.

You may also want to set up a new QuickBooks Online Accountant account at no cost for a completely fresh start.

Feel free to revisit this thread if you have further questions or need clarification.