Control Room authentication API in single sign on

Hi,

I am trying to generate token using the Control room API for authentication:  https://automationanywhere-be-prod.automationanywhere.com/v1/authentication. It was working fine before with username and API Key. But after implementing single sign on in the control room, I am unable to generate the token through postman tool. Please could someone help me with this issue. 

Thanks,

Komal