Untitled

<!doctype html>
<html>
<head>
    <meta charset="utf-8">
    <title></title>
    <meta name="description" content="">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <script runat="server">

        Platform.Load("Core","1.1.1");
        try {
          </script>
  %%[
    Var @body, @callstatus, @response<br>
     Set @body = '{<br>
 "grant_type":"password",<br>
  "clientId":"Id",<br>
  "clientSecret":"****",<br>
  "username":"test@email",<br>
  "password":"MyPassword12345"<br>
  }'<br>
    HTTPPost2("https://login.salesforce.com/services/oauth2/token", "application/x-www-form-urlencoded", @body, True, @callstatus, @response)<br>
]%% <br>
    <script type="text/javascript" runat="server">
        } catch (e) {
            Write(Stringify(e));
        }
    </script><br>
Call:%%=v(@callstatus)=%%<br>
Res:%%=v(@response)=%%
</head>
<body>
</body>
</html>

{"message":"The function expression is invalid. See inner exception for detail.rn <br>
Script: HTTPPost2("https://login.salesforce.com/services/oauth2/token", "application/x-www-form-urlencoded", @body, True, @callstatus, @response)rn<br>
Index: 1098rn<br>  ListID: 0rn" ,<br>
"description":"ExactTaOMM.InvalidScriptException: The function expression is invalid. See inner exception for detail.rn<br>
Script: HTTPPost2("https://login.salesforce.com/services/oauth2/token", "application/x-www-form-urlencoded", @body, True, @callstatus, @response)rn
Index: 1098rn ListID: 0rn <br>
Error Code: OMM_FUNC_EXPR_INVALIDrn<br>
  - from Jint --> rnrn<br>
  --- inner exception 1---rnrnExactTarget.OMM.FunctionExecutionException: An error occurred when attempting to evaluate a HTTPPost2 function call. See inner exception for details.rn<br>
  Error Code: OMM_FUNC_EXEC_ERRORrn - from OMMCommon --> rnrn<br>
  --- inner exception 2---rnrnSystem.Net.WebException: The remote server returned an error: (400) Bad Request. - from Systemrnrnrnrnrnrn"} <br>
 Call: Res: