Provide Passwordless (email) to some users of a tenant

How do I make sure the passwordless (email) flow shows up in the universal login for some users in my Tenant.

  1. I have created a user through the Management API and set his connection string as ‘email’
  2. I have also created an organization that uses email connection and added this user as a member. (No prompt flow)

For both methods to work, I have to either pass the connection or organizationid in the authorizationParams, which is not possible for my single tenant where I have users with password flow as well. And I cant see how to get the user’s connection or organization before he actually logs in.

What is Auth0 recommendation for this case? Is this supported? Is there another way?

I have gone through multiple other posts about this case and have seen no answers. Please advice.