Instant Payment Status

[mon_specials]

Hello everyone,

I need to start thinking about payments in my project. I have a time sensitive project and I need to be able to see the status of payments instantly as they are paid. 

The case is that my project reserves some custom objects that I do not have an inventory availability of so I need to create a draft order for each object confirmation. As I have the draft order created, I need to send to the customer the payment link which needs to have a due date & hour because my business is time sensitive so all the payments and payments confirmations need to be made as quick as possible. 

Is there a way to configure also the due hour for payment links ? And can I see instantly that the payments has been made? I don't necessarily need the money in my bank account instantly but I need to know the payment status has been changed to Paid instantly because as I said, is an object-reservation business and sometimes i need to reserve for today for example. 

Thank you very much!