Payment using Mobile Pay fails

Some additional info. The payments have been registered as paid in Paytrail's control panel despite the error. However, the orders have not been registered as completed in the Drupal Commerce shop.

It returns this:

{s:21:"paid_event_dispatched";b:0;s:20:"terms_and_conditions";i:1;s:32:"commerce_paytrail_transaction_id";s:36:"974adf96-b5db-11ec-8f0f-03abd6bbce33";s:23:"commerce_paytrail_stamp";s:36:"d27563f8-29e4-4afd-8488-4d86c1e289c3";}

More info from Paytrail support:

I double checked this with our technology and it turns out that we have tried to make a callback on the payments but the online store gives us this response: "status": 403, "text": "Stamp validation failed."}, ".

In normal cases, the payment goes through normally, but in some cases, your online store has given us the error code "status": 403, "text": "Stamp validation failed."}, ". when we have sent a callback. This then means that there is some type of error in the online store itself.

This does not explain why the payment has gone through. Why is the payment registered if stamp validation fails?

Okay, so it seems the shop returns the stamp validation error after Paytrail has returned that the payment is approved.

Will see if I can find the query parameter.

There are two queries for the same order and none of the checkout-stamps matches the one I posted in comment #5 for the same order.

/checkout/373/payment/return?checkout-account=977532&checkout-algorithm=sha512&checkout-amount=335&checkout-provider=mobilepay&checkout-reference=373&checkout-stamp=e8f96f74-6344-4e1c-97a1-2508bf49f0e3&checkout-status=ok&checkout-transaction-id=964bc006-b5db-11ec-8f0e-0b9ffd411762&signature=7d7cb9f2c4b33cd05bef956c05a5a9e82d5495b3a520a8aa4d1b55c5223441ee53f29a37750149de72bad7bb6b41c37d97abf438f86e1c9f46890860241c5d2a

/checkout/373/payment/return?checkout-account=977532&checkout-algorithm=sha512&checkout-amount=335&checkout-provider=mobilepay&checkout-reference=373&checkout-stamp=6e591138-3f8a-4710-b308-a45238a02ec5&checkout-status=ok&checkout-transaction-id=6f70550a-b5db-11ec-bfa2-3f4d9fc7f2cc&signature=427a575574db2338702b545cd310fb98195da495269f0d15d1cf17d967c80bfd31e0024d07e156d3bbc23a7fca283c9eb83b94e819512edc603221866481d8ee

We're still having problems with Mobile Pay payments. The orders do not register as completed, but remain as draft although the payment is shown as completed. What could be the reason why only Mobile Pay payments have this problem?

With our limited testing, MobilePay seems to work, but we now have an other problem. When selecting shipping methods that changes the order total, we get the following error:

Paytrail\Payment\ApiException: [400] Client error: `POST https://services.paytrail.com/payments` resulted in a `400 Bad Request` response: {"status":"error","message":"Sum of purchase item amounts does not match total amount."} in Paytrail\Payment\Api\PaymentsApi->createPaymentWithHttpInfo() (line 580 of /backend/vendor/tuutti/php-paytrail-payment-api/src/Api/PaymentsApi.php).

Hmmm, I'm not sure. No one has reported the error. I just discovered it myself when testing the new version. I tried downgrading to the previous version, but the error still occurs.

Additionally, the following error occurs upon clicking a bank payment button after updating Commece from 2.30.0 => 2.32.0. This error applies to both current and previous version of Commerce Paytrail.

The website encountered an unexpected error. Please try again later.
Error: Call to a member function getState() on null in Drupal\commerce_checkout\Plugin\Commerce\CheckoutFlow\CheckoutFlowBase->getStepId() (line 211 of modules/contrib/commerce/modules/checkout/src/Plugin/Commerce/CheckoutFlow/CheckoutFlowBase.php).

I will have to conduct some more testing on the Commerce 2.32 issue.