Create Employee automatically from IDP(google Workspace/okta/keycloak/jumpcloud)

We have a SAAS company and have Identity provider(s) that we want to use for auto creation of employees.
As of today we have setup SSO via our IDP and it works perfectly fine.
The problem is it only creates users (website user), we want to create employees automatically when its creates in our IDP and the users signs in using their IDP credentials. Is it possible? is it a recommended way or there is another way of doing this?
Thanks for all the help in advance!

If you can create custom app