# customerDefaultAddressUpdate - storefront - MUTATION Version: 2024-10 ## Description Updates the default address of an existing customer. ### Access Scopes `unauthenticated_write_customers` access scope. ## Arguments * [addressId](/docs/api/storefront/2024-10/scalars/ID): ID! - ID of the address to set as the new default for the customer. * [customerAccessToken](/docs/api/storefront/2024-10/scalars/String): String! - The access token used to identify the customer. ## Returns * [customer](/docs/api/storefront/2024-10/objects/Customer): Customer The updated customer object. * [customerUserErrors](/docs/api/storefront/2024-10/objects/CustomerUserError): CustomerUserError! The list of errors that occurred from executing the mutation. * [userErrors](/docs/api/storefront/2024-10/objects/UserError): UserError! The list of errors that occurred from executing the mutation. ## Examples