HPP Incorrect hash

Question

I send a request to the sandbox to "Pay By Link". URL: https://pay.sandbox.realexpayments.com/pay

I get an error in response. {"errors":[{"resultCode":508,"internalErrorCode":61000,"errorMessage":"Incorrect hash. Please check your code and the Developers Documentation."}]}

The hash is calculated correctly (the values obtained through the SDK and calculated manually are the same). This is possible with the wrong shared secret.

I use the values of the MerchantId and the SharedSecret in my account on the https://developer.globalpay.com/gp_api_credentials/ (My Account->Ecomm API Credentials->Sandbox Credentials)

1. How to fix the error?
2. Can i change the "Ecomm API Credentials->Sandbox Credentials" ?

Answer 1

The server reply is often completely wrong, so don't believe the error message it tells you. Remove all optional config field values (such as CardStorageEnabled) and try again. Then it should work, and after that you can re-enable the optional fields one by one to see which one causes the error.