You might have created an order or quote when you realize that you have created the order or quote for the wrong customer. You do not need to delete the order but you can simply change the customer for the order or quote by following these steps:
Note: when you change the customer of an order or quote, all customer-specific rules (customer group pricing, discounts, and availability) will be applied. To confirm this, a pop-up with the following message ‘Product changes have been applied to the cart’ will briefly be shown.
In the web console, the original order or quote will be canceled and a new order/quote will be created for the correct customer.
If your customers receive order or quote confirmation emails, then the new customer will receive an email for the new order or quote. This order will have a new order or quote number.
If your customers receive notifications of canceled orders or quotes then the original customer will receive a notification email that their order or quote was canceled.