Why is my order locked and being edited?

The error {Type} order is locked since its currently being edited in Warpspeed means that there are existing draft lines for the order.

Warpspeed creates draft lines for orders that are being edited. When a user exits an order incorrectly, say by closing the browser, the draft lines will continue to exist. You can ask our support department to remove the draft lines for you.

NB In newer versions, this problem has been fixed and draft lines will be removed automatically. A software update would therefore provide a permanent solution.