I followed the steps described in Adyen documentation to setup Apple Pay for Adyen. But we get the following error during the authorization call:

Authorization request failed with status code 500, errorCode = 5_004 (Could not find Merchant Private Key)

I found some documentation for this error here which has few tips to troubleshoot the issue. It was not of much help though as we already completed/verified all of those steps.

As far as I understand from Apple Pay documentation, there are two types of keys/certs.

One is the Apple Pay Payment Processing Certificate, which is used by the payment processing provider (Adyen in our case) to decrpyt the token, etc. We uploaded the Apple Pay Payment Processing Certificate as described in Adyen docs.

And then there is the Merchant Certificate, which is an authentication between our application server and Apple Pay. AFAIK, Adyen does not need this certificate.

Did anyone else face this issue? The Apple Pay Certificate that we uploaded is marked as Active in green in our Adyen account. We are not really sure what we did wrong here. Any help is appreciated. Thank you.