I tried today to access the same url in my system, I am also getting the same. Seems to the url formation is incorrect. Use in correct property name in place of UserIdentifier and Password, pyUserIdentifier actual property.
Thanks for your quick response. It's working for me.However I would like to know another approach. Let's assume authentication is done by siteminder . Now if user is authenticated by any application and they are trying to open the Pega application via a link then it should directly open the portal not login page. How to do that.
I can understand we need to change the servlet from prweb to <YYY> but do we need to pass any parameter?