I read on pay pal site that IPN CAN BE USED FOR
1.notify your server every time a new transaction occurs
2. if the status of a prior transaction changes, use IPN
I want to know that suppose someone paid on my website and due to any reason the payment statuse is pending at the moment(Say if verification is enabled).
Now on my return page Page_ load I will get pending and update my database accordingly.
The user will not be able to use the paid service till the payment status is "completed " in my database.
Now suppose the payment status is completed after one hour.
How the pay pal will notify me so that I can give the user paid services.