What is the difference between a scheduled and a recurring payment?

A scheduled transaction is a one-time payment with a future due date. Your payment will reach the payee on the date you choose and your card will be charged four days before that, not immediately.
A recurring payment is a payment that will be made every month on the same day with the same amount and to the same recipient, according to your instructions.
Please note that if you put in both a scheduled and a recurring payment, your card will be charged twice and as a consequence, your payment will also be carried out twice.