var payload = '{"grant_type":"client_credentials",';
        payload += '"client_id":"XXXXX",';
        payload += '"client_secret":"XXXXXXX",';
        payload += '"scope":null,';
        payload += '"account_id":"XXXXXXXXXX"}';
  var url = "https://mcvwf-nkxrzjq7703k4qnp23fgt1.auth.marketingcloudapis.com/v2/token";
  var contentType = 'application/json';
  try {
         /* perform HTTP Post request to get a new OAuth 2.0 access token */
         var accessTokenResult = HTTP.Post(url, contentType, payload);
         var tokenObj = Platform.Function.ParseJSON(accessTokenResult["Response"][0]);
         var accessToken = tokenObj.access_token;
         Write("<BR>OAuth 2.0 Access Token: " + accessToken);
  } catch(e) {
          Write('<h1>third call</h1></br>');
          Write('url: ' + url + '</br>');
          Write('payload: ' + Stringify(payload) + '</br>');
          Write(Stringify(e));
          Write('</br>');
   }