Purchase Date is the date of the purchase and can be found on the top right-hand corner or each purchase order. 

You can also use the purchase date filter in the left-hand sidebar if there is a particular time range that you are looking for. 

Purchase Order Date Added is the date the purchase order was added to our database. This date does not appear on the purchase order itself, but you can search with this date by selecting the filter in "Include Additional Filter".