This problem was solved by installing the license in the portal (Infrastructure->Administration->Licensing)
Thank you.
Yes it is happening as you are an unauthorized user.
To add end points to vCAC you should be logged in a s an Infratructure Administrator.
Thank you Abhilash.
I logged in as an Infrastructure Administrator "vcac".
Should I configure any other privilege , other than the config below you mentioned?
This problem was solved by installing the license in the portal (Infrastructure->Administration->Licensing)
Thank you.