Apple Pay - error message never displayed

[dimitriBouteille]

Describe the bug

When no delivery method is available, the following message is displayed: There are no shipping methods available for you right now. Please try again or use an alternative payment method.

https://github.com/Adyen/adyen-magento2-express-checkout/blob/cf8ef25d64120c90e7e7a7ac49719cbe884adadc/view/frontend/web/js/applepay/button.js#L261

Unfortunately this error is never displayed ...

When I check Adyen component ApplePayService and Apple Pay document, reject('My error') is not valid.

Obviously the reject function must be called with an object containing the following information :

• errors: ApplePayError[]
• newTotal: ApplePayLineItem

An example that works: Adyen - Step 4: Configure the callback to handle shipping method changes

To Reproduce

• Selected shipping address with any shipping method
• Wait 30s for Apple Pay to validate the shipping address (onShippingContactSelect call reject function)
• Apple Pay display Payment not completed
• Apple Pay close payment sheet

:boom: Redirected back to the checkout, no error message displayed (Magento)

Expected behavior

Error message must be displayed in Apple Pay sheet.

---

Why all reject callback are called with string ? Is this on purpose?

[dimitriBouteille]

When no delivery method is available, Apple Pay suggests using the error with the following code: addressUnserviceable

The code that indicates that the merchant can’t provide service to the shipping address (for example, can’t deliver to a P.O. Box).

if (result.length === 0) {
    reject({
        newTotal: {
            label: this.getMerchantName(),
            amount: formatAmount(getCartSubtotal() * 100),
        },
        errors: [new ApplePayError('addressUnserviceable')],
    });
    return;
}

Why this error, Apple Pay display generic message

[dimitriBouteille]

Same issue for authorization step :(