Specifies the input fields to update the buyer information associated with a cart.
Buyer identity is used to determine
[international pricing](https://shopify.dev/custom-storefronts/internationalization/international-pricing)
and should match the customer's shipping address.
Access Scopes
Fields
countryCode:
CountryCode -
The country where the buyer is located.
customerAccessToken:
String -
The access token used to identify the customer associated with the cart.
deliveryAddressPreferences:
DeliveryAddressInput -
An ordered set of delivery addresses tied to the buyer that is interacting with the cart.
The rank of the preferences is determined by the order of the addresses in the array. Preferences
can be used to populate relevant fields in the checkout flow.
The input must not contain more than `250` values.
email:
String -
The email address of the buyer that is interacting with the cart.
phone:
String -
The phone number of the buyer that is interacting with the cart.
walletPreferences:
String -
A set of wallet preferences tied to the buyer that is interacting with the cart.
Preferences can be used to populate relevant payment fields in the checkout flow.
Accepted value: `["shop_pay"]`.
The input must not contain more than `250` values.