Notice of registration after payment?

Question

WordPress

Good afternoon, can you tell me how to make it so that the notification of registration comes only when the client makes a payment?
Initially, when placing an order, the user clicks the "Register me" checkbox, after successful ordering, he is sent to the payment gateway.
And even if the client does not pay for the goods, he will still receive a registration notification.
You need to make sure that registration takes place only in case of payment.

Answer 1

usually the payment gateway is able to make a "callback" to your site, notifying it of the result of the operation. You process this call and there you notify.