I would like to know what is the best way to get information on sales orders placed by customer for a particular period in time.
I know of the sales order detail/summary but this report only shows open orders and I want to identify what orders have been taken (therefore including retained orders if the sale was also made in that period).
David has suggested two good reports, but you will probably find you need to modify these in order to get them to show the exact data in the view you want them as well.