Auto generate unique order numbers

Hi, been using your form for weeks now. Really impressed by the simplicity and easy customization. I need a feature [not sure if it is one]. Whenever an order is made [a successful payment] auto responder generate a order number per order and sent to the buyer in the confirmation mail. And a copy of it in the payments tab in the dashboard. Can you help me?

My website is /https://neopanel.net/

thanks

https://www.ads-software.com/plugins/quick-paypal-payments/