I was using the new trade ticket interface and ran into this error when placing an order.
Error: (000960) You must sell a minimum of 1 share. Please review your order or call a Fidelity representative at 1-800-544-6666.
As you are well aware, the new trade ticket interface is a work in progress. Errors are to be expected.
Here is a temporary solution to this problem.
- Login to your Fidelity account.
- Click on Trade.
- Verify that New Trade Experience is set to Off.
- Place your order.