Kuika's Setup Intent action is used to predefine a user's payment method via Stripe. This action is used to securely collect and store the user's payment information in preparation for future transactions. By allowing users to save their payment information, it speeds up the checkout process for subsequent purchases. For example, when a user signs up for a subscription service, this action collects payment information and prepares to initiate the transaction. In this course, you will learn how to set up your users' payment methods using the Setup Intent action.