I'm creating a store and had a question on the create member / customer flow in uCommerce.

If I understand correctly the customer is created automatically if a user is already signed in.

But what if the user has the option to add multiple billing / shipping addresses and the option to select their default billing and shipping before the user gets to the checkout. Currently I created a customer programmatically and linked the addresses and added a custom field to the database "IsDefaultAddress" so I can pass on the correct address to the API (with the EditBilling and EditShipping methods) but I don't know if this is the right way to go? If someone could point me in the right direction that would be really helpful!