Inbox Universal Inbox CreateInbox method

Hi

When working on Universal Inbox for Approval process there is a requirement to create
a Inbox Item and Assign Multiple Users for that record and from book shelf it was found that
we can use two method to suffice the requirement.

http://docs.oracle.com/cd/E14004_01/books/PDF/AppsAdmin.pdf

1. CreateInbox                                                  Page 154
2. CreateInboxOwner Method                  Page 157

First Method is expecting info in the form of Hierarchy and to my understanding the
structure should be as below.

<?xml version="1.0" encoding="UTF-8"?><?Siebel-Property-Set EscapeNames="true"?>
<Inputs>
<InboxItemInfo InboxTypeName="Deal Risk" ObjectId="1-8FLR3" InboxPartyId="0-1" InboxName="Multi1">
<InboxOwnerInfo OnwerPartyId="1-635WL" ></InboxOwnerInfo>