I created a Anonymous user and add it in UME as it was mentioned in the Anonymous Logon creation guide. Then i assigned a new desktop and role which i created and meanwhile i redirected the URL to "com.sap.portal.navigation.portallauncher.anonymous".
Now when i try to check I get error that " No portal roles are assigned for this user.If this problem persists, contact your system administrator."
I checked the UME tool in portal and try to look at the property "ume.login.guest_user.uniqueids" and found out that it is always shows default "Guest" user but I have assigned another user in UME through "Visual Admin" tool.
is this normal behavior or this is the reason why my Anonymous login is not working.....