System prop XL.ForcePasswordChangeAtFirstLogin
This parameter is no longer implemented in OIM 11g.
Steps
1. Go to WebLogic Domain ->
2. Right click and open 'System MBean Browser'
3. In the 'System MBean Browser' left panel, go to 'servername' -> Server:
4. Set the SsoEnabled flag to 'true' and apply
Then restart OIM server.