update

proto/checkout.proto

@@ -80,6 +80,12 @@ message InitializeCheckout {
   google.protobuf.Any cartState = 4;
 }
 
+message ContactDetailsUpdated  {
+    optional string email = 1;
+    optional string phone = 2;
+    optional string name = 3;
+}
+
 message InventoryReserved  {
     string id = 1;
     string status = 2;
@@ -93,7 +99,7 @@ message Mutation {
     RemoveDelivery remove_delivery = 3;
     PaymentDeclined payment_declined = 4;
     ConfirmationViewed confirmation_viewed = 5;
-
+    ContactDetailsUpdated contact_details_updated = 6;
     OrderCreated order_created = 7;
 
     InitializeCheckout initialize_checkout = 9;