Setting Up Okta Integration for Auth0 Tenant Members

Hi,

I would like to set up an integration between Okta and Auth0.
From my understanding, this is possible for Enterprise subscriptions, which we currently have.
I have come across a guide on how to perform the integration, but I want to make sure that only members of our Auth0 tenant will be able to log in through Okta, rather than allowing access to all users.

Could you please advise on the best way to achieve this?
Thanks.