You can now allow online ticket buyers to vault their credit card during their transaction, even if no payment is required.
1. Enable Setting
Go to Admin > Site Settings > Ticket Sales > Customize Registration Forms
Option is Added to Final Screen of Ticket Transaction
When setting is enabled AND no payment is needed to complete the order, a card vault form will be displayed to allow user to vault a card without a purchase.
This form displays on both internal and public ticket forms.