Sales > Orders > View Order > Details Tab
Order Summary: visible on all Orders page tabs and provide quick information about the order
Also you can found various information about the order:
Order ID: identification number of the order;
Invoice ID: click Generate button to create invoice id for this order;
Customer: customer’s name;
Customer Group: read more about Customers groups in this chapter;
IP Address: an Internet Protocol address is a numerical label assigned to each computer participating in a computer network;
Store Url: read more about multistore set up in this article
Date Added: order registration date;
Original Order Total: order total amount.
You have the ability to modify order products and totals.