Hello Opencart Community,
Well, in my humble opinion, there can be many reasons why the customers left the cart abandoned. What if there's an issue with the payment or something is not working in the checkout process, or maybe a customer needs a second decision or may need better pricing?
It is a good idea to contact the customer and reinitiate the purchase process where he/she may left. On that note, you can check the Webkul's Opencart Abandoned Cart extension, allowing the admin to view the customer name, email, time, and more in the grid format.
https://store.webkul.com/Opencart-Abandoned-Cart.html
Further, if you need some other help with the abandoned cart issues, let us know.
Thanks
Rohit.