You can update your store’s general details (store name, address, phone number, email address etc) by clicking on Settings and the Edit button next to General Settings. Please remember to save the changes before leaving the page.
Note: The email address in the setting will be used as the sender of the order confirmation, which means it will be displayed to your customer when your customer receives the email confirmation after placing an order.
You can even add links to your Social Media (Facebook and Twitter), select the correct time zone and currency for your store as well as update the tax details for your store. Please note that you need to select the correct tax settings (country or state) so the orders are sent down correctly.