As soon as I change the merchantId, merchantKeyId, and merchantSecretKey in configuration transactions appear with the following error.
Running Samples/Payments/CoreServices/ProcessPayment.rb
{:code=>400, :response_headers=>{"Content-Type"=>"application/json", "Content-Length"=>"170", "X-Cnection"=>"close", "x-response-time"=>"290ms", "Strict-Transport-Security"=>"max-age=31536000", "v-c-correlation-id"=>"7079ce85-d3b1-423e-974e-79abacdde8f9"}, :response_body=>"{\"submitTimeUtc\":\"2019-10-09T17:27:37Z\",\"status\":\"INVALID_REQUEST\",\"reason\":\"INVALID_DATA\",\"message\":\"Declined - One or more fields in the request contains invalid data\"}"}
