You can also have an overview of all checkout sessions. You can filter them by customer email, status and product.A checkout can be in the following states:
Open: The checkout session is open and waiting for the customer to complete the payment.
Confirmed: The customer clicked the Pay or Subscribe button and the payment is being processed.
Succeeded: The payment was successful and the order was created.
Expired: The checkout session expired and the customer can no longer complete it. A new checkout session must be created.
If you click on a Checkout, you can have more details on the payment attempts, in particular, why a payment has failed or has been declined.