How do I change the product so when someone buys a product it will disappear?

Hi i have created a form with a payment field (see image and link). How do I change the product so when someone buys a product it will disappear? 

How can I automatically hide the product after someone buy it?

Unfortunately, the product won't disappear from the list. It's a kind of an inventory function and we don't support it yet. A workaround would be to setup your product items using any of the following widgets:

https://widgets.jotform.com/widget/appointment_slots

https://widgets.jotform.com/widget/ticket_purchases 

https://widgets.jotform.com/widget/gift_registry

https://widgets.jotform.com/widget/inventory 

You need to get the total by calculation:

https://www.jotform.com/help/259-How-to-perform-calculation-in-the-form

Then you need to pass the calculation to the Payment field for payment processing:

https://www.jotform.com/help/275-How-to-pass-a-calculation-to-a-payment-field

This is a bit technical, let us know if you need help with is.