EDD has a full-featured Customer Management system. You can both see and edit the personal information about each customer, the products they’ve downloaded, how many times they’ve downloaded them, and how much money they spent.
You’ll also be able to see the details of each sale and make private notes about each customer.
Go to Downloads → Customers and you’ll see a list similar to the one below.
The list shows the Custome name, Email, Purchases, Total Spent, and when their account was created.