The customer is given a window of time to update their address after their order is placed and before the order drops to Commerce Interface. Ultimately, the customer is responsible for making sure that their shipping address is correct when placing their order.
If you have not yet shipped the order:
- Let the customer know that you will need to cancel the order and the customer can place a new order with the correct shipping address listed.
If you have already shipped the order:
- You will need to let the customer know that the order is already in transit to the shipping address listed for the order.