Help me troubleshoot sso issue for ntlm

I have it already, i also do a variable assign that looks like this session.logon.last.username = expr { " sheep\[mcget {session.logon.last.username}]" } Before the sso credential mapping Since i also trying to be able to get sso to a webapplication to work (sheep is the domain). I need to specify sheep\username when i log on to that.