Congratulations, you're ready to ship!
In the Orders tab, you can easily see which orders have and haven't been fulfilled.
Click into the order you are ready ship. Under Shipping Address, you will see the all the information you need to ship the product to your customer.
Once your product has been shipped, under Shipping Method, flag the order as shipped. You can add a tracking number and shipping carrier if you wish.
Unselect the Notify customer via email box if you do not wish to notify your customer that their item has shipped.
If left selected, your customer will receive an email that their order has shipped.