I'm developing an Opencart-based online shop for a client of which he requests a specific feature for exit popup. I know exit popup is common and there are already such extensions on market , but this client has a specific rule:
The exit popup only appears IF the visitor doesn't finish the checkout process (which means no purchase). If the visitor finishes the checkout (means there's purchase made), the popup doesn't need to appear.
Does anyone here know an extension available with such feature? I found a service called https://wisepops.com but not sure if they can also provide such function. Any recommendation will be appreciated

Thanks.