Auto payment or payment under a subscription allows to periodically make regular write-offs from a bank card without reentering card data.
My Account allows to modify payment parameters, and your user is always able to cancel a subscription.
For a consumer to use this service, he has to make his 1st setup payment and enter his card data, and then to confirm a periodic write-off according to the schedule.
Your buyers beforehand receive information on a forthcoming write-off. It allows reducing the risk of their negative reaction if a subscription has been confirmed unconsciously.
If for any reasons there was no write-off (for example, there is no money on a card, or its validity expired), an e-mail message is sent to the user with a proposal to bind a new card or manually make a payment.