Quick Item Lookup
You can get a quick view of general information about an item by using the Quick Item Lookup which can be found by going to Inventory -> Home. Enter in an item code in the item code search box and click the right arrow.
You'll be able to see the on hand, committed, and available levels at all inventory locations. You can also see the cost and price info for the item along with the year-to-date sales.
At the bottom of the page you can select a customer and view all the orders where the customer has ordered the item.