Trigger the Pre User Registration flow for social and other non-database connection types


Our main use case is: “Deny a social registration if a user with the same email address already exists. (i.e. enforce unique email addresses)”

Currently this is implemented with a hacky and overly complex post-login Action (which doesn’t fully work due to another issue.

Enforcing email uniqueness would be less of an issue, if the official account linking extension would support Actions: Allow for account linking with actions - Auth0 Community

I understand that the Auth0 team has their own roadmap and priorities. But it is a bit frustrating that there is no activity for months/years on valid and useful requests from the community.