How to "uncommit" a product that was "committed" through O/E Order Entry

SOLVED

An item that was entered through O/E Order Entry but not delivered/invoiced can't be sold to another customer. How are we able to sell the item to another customer that was committed without deleting the Order Entry? We still have an item sitting in the inventory marked as "committed" (we can't sell it to another customer) because our staff deleted the original order.

Would appreciate your help. I searched through the knowledge database and can't find the answer.