Payment functions Through GEST, people can purchase various products, such as tickets, wristbands or physical products, when registering (using a form). Creating products is discussed in the section Products. Products can be paid for directly using the form when registering, the person can choose an invoice and the product can be paid for via a separate email link. If an email link has been selected as the payment method, the person first selects the product to be purchased using the form. After this…