Simple idea: after shipping some items on a sales order but not shipping complete, there should be an option to reprint that sales order afterwards showing what has shipped and what has not shipped.
When a partial order is shipped it may be weeks before the rest of the order is ready. I give the packing slip with the sales order to the accounting person so that we can invoice for what has shipped. Then I would like to print a new sales order clearly showing what has shipped and what is still to ship.