A bookmark shows a view of offered goods divided into categories, so that the search is very simple and well arranged.
A card containing information about a completed order: prices, amounts, delivery terms and so on
A card offers a view of the positions of previous orders. Contains all the information about order numbers, prices, individual invoices due.
According to your needs, any information that you wish to be visible for your customers can be filled in; for instance: list of receivables/liabilities or covering of orders.