Display errors in applepay

Hi

i have implemented ApplePay using Applepay js version 3.

i am trying to show shipping address invalid error in applepay popup.

this is what i am doing in session.onshippingcontactselected = function(event) {

session.onshippingcontactselected = function(event) {
.....



var _ape =  {
                  code: "shippingContactInvalid",
                  contactField: "locality",
                  message: "Postal coe is invalid"
                    };        
                   
                var applePayErrors = [
                  _ape,
                ];
               
var ApplePayShippingContactUpdate= {                                                        

              
errors: applePayErrors,
      
  newShippingMethods: newShippingMethods,
              
newLineItems: newLineItems,
              
newTotal: newTotal
           
};     

          
session.completeShippingContactSelection(ApplePayShippingContactUpdate);

But this does not work properly apple pay does not show any errors.

Is this right syntax for adding errors property in ApplePayShippingContactUpdate

i am referering this link https://developer.apple.com/documentation/apple_pay_on_the_web/applepayshippingcontactupdate/2928614-errors