Affiliate Marketing - How to track all sales on 3rd party website made via my application

Question

I'm looking forward to the possibility of an algorithm or a way to track how much sale has been made on 3rd party's website because of my client so I can get the commission. For example if a user "A" jumps onto my application and finds a product "Z" if he wants to purchase it, A is taken to the official website of Z. If A purchases the product Z, I should be informed of it (notification) so I know that the product was purchased. Moreover, If A buys the product Z as well as finds any other product "Y" interesting as well and buys it I should know if it as well.

So, the question is:

1. Is it possible to track if a person buys a product on official website when they were redirected via my application/website? Also, if they buy multiple products is there a possibility to track it and finally, get the price of all the products that they've bought?

2. If it is possible, what technologies or methods should I study for making it possible?

Answer 1

Cant you just use sql? I would just have it setup to trigger a +1 to some random table then map those tables to individual products to get a estimate of sales.