I am using hosted checkout and working in the sandbox, for now. I set up the success url, and webhook url on the hosted checkout setup page. They are both working. The webhook receives a number of useful fields, including the payment id, merchant id, and session id. But it has no way to display data to the user. It must return a simple 200 OK. The success url gets no data at all, but allows me to display a page to the user. So my question is this: How can I display an interesting and useful receipt to the user? I would like to display the amount paid, card type, last 4 digits, a button to request that this card be saved as a card on file for future use, and a link back to the store. I am capable of using a messaging mechanism to get the data to the user, but this seems overly complex. Is there a simple way to give the user a meaningful receipt?