Sometime, you might want to resend confirmation email to your registrant (because they didn't receive email for some reasons during the registration process or when you update their record and want to re-send the confirmation email with updated information of the registration). To do that:
When you do that, the confirmation email will be re-send to registrants. The notification email of that registration will also be resent to administrator, too.
If you use Group Registraiton, you can only resend email to whole group, not individual members. So if you want to resend email for a group registration, please choose the group billing record to resend email instead of choosing group member records (if you choose group member record to resend email, there will be error message displayed and no email is re-sent)