I cannot make out the usage of 'Stock Journal' field in the menu items under 'Warehouse -> Receive/Deliver By Orders' (i.e. 'Incoming Shipments', 'Internal Moves', 'Delivery Orders').

In our environment, you can either leave the field blank or select 'Delivery Orders' (which I think comes by default by installing the warehouse module).

How does the selection affect anything? Is this even related to the Stock Journal as in accounting journal?