I registered a user using firebase.auth().createUserWithEmailAndPassword, however I require the email to be confirmed, before Enabling the user.

I am confused how to realise this simple “double opt-in” flow. I’ve enabled Allow passwordless login in the Email / Password provider logins, but no email is sent. If I read https://firebase.google.com/docs/auth/admin/email-action-links it would appear I need to implement sendCustomPasswordResetEmail myself?

I perhaps wrongly assume GCP Identity Platform could send the emails?