In every event, two forms can be extended. One is the Buyer Form and the other is the Attendee Form. The Buyer form is a mandatory form whose data is needed to process the payment online. However, Attendee form is an optional form to capture the attendee data. There are two ways an attendee form can be added; one at the event level which is the default option and the second one is at the ticket/Registration level. If you want to capture data of the registrants based on the ticket/registration type, please opt for ticket level attendee form.