Setting up Remote Authentication for Help Center Portal

Setting up Remote Authentication for Help Center Portal


   Firstly, my website's url is https://www.example.com/ and my Zoho Desk Help Center Portal's url is https://support.example.com/portal/.

I am trying to have the customer Zoho Desk Help Center Portal be automatically accessed with credentials (login/password) that they have on my existing website. I want them to be able to use the "Sign IN/UP" feature in the Zoho Desk customer Portal with their  credentials in my owned website.   I already have a Zoho Desk on my subdomain(https://support.example.com/portal/).
Any help would be very much appreciated. At first glance, I want to know if it is possible to achieve this fiction ;)

           If it is possible with Remote Authentication, then I try to configure Remote Authentication settings in Zoho Desk Help Center Portal. I have a couple of questions below.

1.Do you give me an example as a Remote Login URL in settings of Help Center Portal?

2.Do you give me an example as a Remote Logout URL in settings of Help Center Portal?