3DS2 - Check Version returned an error 403 Forbidden

[cwhsu1984]

Hi,
We did integration on both HPP and API for 3ds2. The HPP works fluently, however, the 3ds2 API does not.

We use SDK to send check version and get 403 forbidden, hence, we send POST by HttpClient manually and still get the same error. The request has content-type json and with securehash header just like what document required. Below are the details of request and response. Why do we keep getting 403 forbidden?

Note that the same account credentials works for HPP without issues.

https://api.globalpay-ecommerce.com/3ds2/protocol-versions
{
    "request_timestamp": "2020-12-07T06:17:59.00187",
    "merchant_id": "MY-MERCHATN-ID",
    "payer_reference": "MY-PAYER-REF",
    "payment_method_reference": "MY-PAYMENT-METHOD-REF",
    "method_notification_url": "MY-METHOD-NOTIFY-URL",
    "account_id": "MY-ACCOUNT-ID"
}
Exception:System.Net.Http.HttpRequestException: An error occurred while sending the request. ---> System.Net.WebException: The remote server returned an error: (403) Forbidden.
   at System.Net.HttpWebRequest.EndGetRequestStream(IAsyncResult asyncResult, TransportContext& context)
   at System.Net.Http.HttpClientHandler.GetRequestStreamCallback(IAsyncResult ar)
   --- End of inner exception stack trace ---

And obviously, there is a mistake in the document, the account_name should be account_id instead.