3 Questions,Identity Mngmt (IM) at Microsoft with integration users’ access that is outside of IM

Hi Colleagues

Version: Oracle Fusion Cloud 23C

We have a production environment controlled by Identity Management at Microsoft and we also have integration users’ access that is outside of Identity Management. We need to know the following.

1) Is it possible to control users so that they enter only through the company single sign on?

2) Is it possible to block the possibility of entering by username, id and password?

3) There is the possibility that integration users identify themselves by another means (for example OAUTH2).

Any responce or help, really appreciated,

Have an amazing day! :)

Diego