Magento how to update billing/shipping order before place order for guest.
I know what observer event I need to use and familiar with it. What I want to know is how to get billing/shipping or and what code write to update it. I've only found information about how to update a address of already placed order.
Best Answer
I did not try this code so you should refine it on your own: you need to have an observer that has a function to update the billing and shipping address, here is what you need to do in your xml:
then in your observer you need to check if the account is a guest account and then update their quote: