Allow users to use Okta SSO

Hi Everyone,

I created a developer account with okta and used the issuer and clinet-id information in my angular SPA web application.

Now whenever a user clicks on Okta SSO on the login page, it takes them to the issuer domain
So now, In production, How do I allow other okta users SSO in my application i.e to login into our okta developer domain ?
Is it enough to assign those okta users in my okta SPA application ? or is it mandatory to submit my app to the public Okta integration network ?

It’s sufficient to assign users to the application