adding request via API - No such user is available in specified DOMAIN

adding request via API - No such user is available in specified DOMAIN

I'm trying to create a API for our service desk , when it's a local user creating a request it works fine. If i try using my domain creadentials i get 
 
- < operation >
< operationstatus > Failure </ operationstatus >
< message > No such user is available in specified DOMAIN </ message >
</ operation >
 
I enter:
 
Username: first.Last
Password: MyPassword
Domain: MyDomain
 
 
I'm working of your example API. If you could tell me what i'm missing or provide any direction it would be appreciated.
 
 
<!doctype HTML public "-//W3C//DTD HTML 4.0 Frameset//EN">

<html>

<!--(==============================================================)-->
<!--(Document created with RoboEditor. )============================-->
<!--(==============================================================)-->

<head>

<title>Add Request Form</title>

<!--(Meta)==========================================================-->

<meta http-equiv=Content-Type content="text/html; charset=windows-1252" />
<meta name=generator content="RoboHELP by eHelp Corporation - www.ehelp.com">
<meta name=generator-major-version content=0.1>
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<meta name=filetype content=kadov>
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<meta name=page-count content=1>
<meta name=layout-height content=1244>
<meta name=layout-width content=817>








<!--(Links)=========================================================-->

<link href="http://www.manageengine.com/products/service-desk/help/adminguide/api/api-docs/style/api-style.css" type="text/css" rel="stylesheet">

 

</head>

<!--(Body)==========================================================-->


<body>

<form ACTION="http://myserver.domain.local:80/servlets/RequestServlet"
  method=post>
<!--(Table)=========================================================-->
<!--begin!kadov{{--><div align=center><!--}}end!kadov-->
<table x-use-null-cells
  style="float: aligncenter;
    width: 550px;
    border: 1px #ccc solid;
    border-spacing: 0px;
    border-spacing: 0px;"
  cellspacing=0
  width=550>










<tr>
<th colspan=3
 style="text-align: center;
   padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"
 align=center>Service Desk Request</th>
<td_null>
<td_null></tr>








<tr class=evenRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Subject</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=subject
 /
 style="width: 200px;"></td></tr>


















<tr class=oddRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Description</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><textarea
 rows=4
 NAME=description
 class=txt
 style="width: 200px;"></textarea></td></tr>

















<tr class=evenRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Mode</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=mode
 /
 style="width: 200px;"></td></tr>


















<tr class=oddRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">E-mail Id(s) To Notify</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=interestedParty
 /
 style="width: 200px;"></td></tr> 


















<tr class=evenRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Category</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=category
 /
 style="width: 200px;"></td></tr>


















<tr class=oddRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Sub-category</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=subcategory
 /
 style="width: 200px;"></td></tr>


















<tr class=evenRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Item</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=item
 /
 style="width: 200px;"></td></tr>


















<tr class=oddRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Username</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=username
 value
 /
 style="width: 200px;"></td></tr>



















<tr class=evenRow
 style="x-cell-content-align: top;"
 valign=top>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">Password</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=text
 class=txt
 NAME=password
 value
 /
 style="width: 200px;"></td></tr>



















 
<tr class=evenRow
style="x-cell-content-align: top;"
valign=top>
<td style="padding-left: 5px;
padding-top: 5px;
padding-right: 5px;
padding-bottom: 5px;">Domain</td>
<td style="padding-left: 5px;
padding-top: 5px;
padding-right: 5px;
padding-bottom: 5px;">:</td>
<td style="padding-left: 5px;
padding-top: 5px;
padding-right: 5px;
padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
type=text
class=txt
NAME=DOMAIN_NAME
value
/
style="width: 200px;"></td></tr>



















<tr style="text-align: center;"
 align=center>
<td class=footer
 colspan=5
 style="padding-left: 5px;
   padding-top: 5px;
   padding-right: 5px;
   padding-bottom: 5px;"><!--kadov_tag{{<implicit_p>}}--><input
 type=submit
 NAME=operation
 class=btnsubmitact
 value=AddRequest
 style="float: center;"></td>
<td_null>
<td_null>
<td_null>
<td_null></tr>
</table>
<!--begin!kadov{{--></div><!--}}end!kadov-->
</form>


















</html>

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