Go to the orders page
Click on your order
Go to the Edit tab in the top left-hand corner.
4. In the Edit section, you can change any information currently in your order including:
Products that are in the order
The address that the order is billed or shipped to
Customer information that is included in the order
Internal and customer notes
Resend customer emails
5. After making any changes click Save at the bottom to make the change permanent.