We have a couple of sales orders with this problem. We have a subassembly with one component on the BOL we are out of stock on. We have removed that item from the already created work order. We are attempting to add the component on the sales order so we can finish the rest of the work order without it. When we add that component on its own line, though, it always returns and gives this error.

This particular item is setup on the card as an inventory item, too, with the pick check box checked. We have no idea why it would even be trying to create a work order for it when we add it as a line on the sales order.