The 1-click upsell feature gives power to your customer to make multiple purchases within the same funnel without the need to input their credit card information over and over again. There is no longer a need to put in their info after they've made a successful purchase as the system will keep the information to assist them with their succeeding purchases easily.
This will give an advantage for you if you have multiple pages (FE and OTOs) on your funnel as it makes the conversion easier as your customer goes through your funnel. This also gives an opportunity for your users to complete their purchase if initially, they are unsure about the offer within the span of 6 hours. The time limit is put in there to prevent unwanted chargebacks but still give flexibility to the customer if they've decided to continue with the purchase. Please note that this feature for now only works with Stripe and Paypal.
See the video below to see it in action:
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