SagePay Response Issues

Question

I am trying to integrate the sagePay in an ASP.NET MVC project. I used Iframe mode of the SagePay. After I submit the credit card details using pay button, I am able to get response to my notification Controller (Which I sent us the notification URL) with a message "0000: The Authorization is successfull" and WasTransactionSuccessful as true.

Controller Code:

public ActionResult Notify(SagePayResponse response)
        {

            if (string.IsNullOrEmpty(response.VendorTxCode))
            {
                return new ErrorResult();
            }

            if (response.WasTransactionSuccessful)
            {
                return RedirectToAction("Success", new { vendorTxCode = response.VendorTxCode });
            }
            else
            {
                return RedirectToAction("Failed", new { vendorTxCode = response.VendorTxCode });
            }
        }

The same controller has called five times repeatedly with same values.

However the final response comes with an error "5004 : The transaction state is invalid". And the variable WasTransactionSuccessful is false. As give in the image.

Finally I believe because of these errors I get following error in the same page which the IFrame is included.

After seven to eight minutes, my PaymentResponse Controller again got called with the error message "2008: The transaction timed out".

Please help me to find out the actual cause of this error.

Answer 1

Solved there was an extra field for USA country users need to pass, that is the State Code, That was missing.