After you have received payment from the customer, you must update the order status to “Completed”.
Follow these steps to update the order status and add a note to the customer: Login to your account, click the “My Account” link in the top right, then select the “My Business Orders” tab. Choose the customer's order from the list; if you have too many orders in your list, you may limit the orders displayed to only reflect orders that are in the processing stage by selecting “processing” from the order status dropdown in the search menu and clicking “apply”. Once you're on the order details page, click the “Edit” tab, change the status of the order from processing to completed, add a customer note, if applicable, then click the “Save” button.
After you mark the order as completed, the completed order status will be reflected on the customer's end. In addition, the customer will receive a email confirmation letting them know their order is complete along with any customer notes that were added.