How to send after payment on liqpay?

Question

LiqPay

Good afternoon, there is a site with the sale of the course. There is only one buy button, which goes to the liqpay payment page. I want the course to be sent to the e-mail after payment (link to the course). You need to do this separately, or you can set up liqpay in this way to send it. There seems to be feedback after payment. I'm thinking maybe after payment a person gets to a page where he enters his e-mail and the course is sent to him