The easiest way might be to simply delete all external IDs – when your users try to sign in again, Discourse will use the email address to find the right account. (This won’t work if the users change their email address in the meantime!)
The easiest way might be to simply delete all external IDs – when your users try to sign in again, Discourse will use the email address to find the right account. (This won’t work if the users change their email address in the meantime!)