Hi,
I am developing a redirection plugin (The user is redirected to the payment page of a bank to pay for the order).
I currently have two concerns,
The first: notification management.
I want to notify the user after he has canceled his order. For this I have to display a message (for example, you just canceled your order) on the index page of my nop site.
Secondly, when I cancel the order my basket becomes empty. I always want to keep my penier full after canceling the order.
If anyone understood me and can help me then please do it.
Here is the method in my controller that runs after canceling the command:

public ActionResult Notify(WariWebResponse response)
{
   //Processing notifications here
   return RedirectToAction("Index", "Home", new { area = "" });
}