Updating Quote Line Item (Opportunity Object) via SOAP API

Summary

Not able to update quote line item

Content

HI All,

I am trying to update quote line items of opportunity object through SOAP API, i am not getting any error in response but the changes are not reflected in Agent Desktop.

Snippet of SOAP Request.

<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"&gt;

    <soapenv:Header>

        <ns7:ClientInfoHeader xmlns:ns7="urn:messages.ws.rightnow.com/v1_4" soapenv:mustUnderstand="0">

            <ns7:AppID>Basic Update</ns7:AppID>

        </ns7:ClientInfoHeader>

        <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd&quot; mustUnderstand="1">

            <wsse:UsernameToken>

                <wsse:Username>Admin1</wsse:Username>