How to set up Azure Active Directory SSO with Pega Systems

I want to set up Azure Active Directory SSO with Pega Systems in SP-initiated mode.
I refer to the following tutorial.

In the above tutorial, should I specify Sign on URL box ?
I want to know the URL pattern or example about Sign on URL box.

@kobat : Can you please refer to the below post?

@imranullah Thank you for your reply.

I want to know about “Sign on URL box”. The article refers to “Identifier box”.
Can you please tell me what I should specify in Sign on URL box ?

I tried to set the following Sign on URL and it worked well.
Thank you.

-Sign on URL
https:///prweb