Integrating Fusion Application with Oracle PaaS (VBCS)

User_RWVSV

I want to develop some forms on Oracle VBCS and after that I will embed these forms in Fusion HCM using Page Integration.

In my opinion, my Fusion SaaS users and roles must be available in IDCS so that my Fusion App Users can access those pages (developed in VBCS).

I know there are many much things are written in blog, but my first and foremost question is,

What will be the role of Fusion App and IDCS ? Which one will be Identity Provider and which one will be Service Provider ?

Regards,