How does a one-click upsell work?
At checkout the card is kept for later. On the upsell page the customer taps one button and the second product is charged, with no card form to fill again. The offer is recorded as an item of the same order.
What is a downsell?
A downsell is a cheaper or smaller offer shown after a customer says no to the upsell. It works the same way, with its own product and price.
How do I choose where yes and no lead?
Open the step menu and choose What happens next. For each answer pick the next step, another step of the same funnel, any web address, or the end of the funnel. By default a yes skips the downsell.
Which payment methods work for upsells?
Cards and wallets work with every funnel. Some other methods cannot be charged again, so keep cards and wallets selected if you rely on upsells.