CTGIMU516E You are not authorized to perform any tasks. Contact your system administrator.

CTGIMU516E
You are not authorized to perform any tasks. Contact your system administrator.

During SSO authentication, this error make me very irritated But always optimistic.
I follwed below stpes.

Steps:-

1) I was accessing the below URL

https://ISAMMACHINE/junction/itim/console

error comes 
 
CTGIMU516E
You are not authorized to perform any tasks. Contact your system administrator.

This error was coming because ISIM user was not having access rights So I added user into ITIMGroup 

2 ) I tried again to access itim console url (https://ISAMMACHINE/junction/itim/console)
SSO authentication happen successfully.

hope this help..!!