Identity provider user imported in service provider

Hi to all, when I use an identity provider, the user that make log in is automatically imported in the user db of keycloak.

is possible to import this user not on the keycloak db but on user federation provider that I’ve configured inside keycloak?

thanks!

making some research this process is made by first broker login authentication flow. is possible to modify the first broker login to use another repository for the user creation?