Bubble has a special action to send an email with a url to the reset_pw page and a unique token for that specific email address to reset a user’s password:
In that action if you do not want to send that email but rather use that token to redirect them yourself to the reset_pw page via a separate email action (or via an external transactional email provider like Sendgrid) … perhaps this video by @romanmg can illustrate much of that scenario > How to customize the reset password action in Bubble.is
The setting you are asking about deals with users who have not changed their password but you mention that you want to include within an action that creates a new user … ? :
Hope the above helps 