See here for IB's description of the order state: https://interactivebrokers.github.io/tws-api/order_submission.html#gsc.tab=0 (scroll to the bottom of the page).
I regularly get a "PreSubmitted" message on LMT order lines before they become "Submitted".
I regularly get a "PreSubmitted" message on LMT order lines before they become "Submitted".
