When the SOAP message is constructed from the hierarchical web service described by the WSDL and invoked, it will create the incident, u_custom_comments, and u_comment_items records.

Endpoint URL

https://instance.service-now.com/incident.do?SOAP&hierarchical=true

Request

<soapenv:Envelope
    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
    xmlns:inc="http://www.service-now.com/incident">
   <soapenv:Header/>
   <soapenv:Body>
      <inc:insert>
         <short_description>test hierarchical</short_description>
         <u_custom_comments>
            <u_comment>comment 1</u_comment>
            <u_comment_type>travel</u_comment_type>
            <u_comment_items>
               <u_name>name 1</u_name>
               <u_value>value 1</u_value>
            </u_comment_items>
         </u_custom_comments>
      </inc:insert>
   </soapenv:Body>
</soapenv:Envelope>

Reponse

<soapenv:Envelope 
    xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" 
    xmlns:inc="http://www.service-now.com/incident">
   <soapenv:Header/>
   <soapenv:Body>
      <insertResponse>
         <sys_id>8422ebe7c0a8006e7d23848c2dc8ba47</sys_id>
         <number>INC0010001</number>
      </insertResponse>
   </soapenv:Body>
</soapenv:Envelope>