The Start-Session webject is used in creating a session. All webjects executed within this session share a common set of resources, including the identity of the calling user, the locale with which the user is associated, and open transactions.

The webject constructs an output group containing a single element with two attributes: INSTANCE and SESSION_ID. The INSTANCE and SESSION_ID attribute values should be used as the value for the INSTANCE and SESSION_ID parameters for all Windchill adapter webjects that should be a part of the session.