CJ and sales

Hello,

Could anyone to explain me how CJ track the sales? I mean :
1. a visitor click on the banner
2. it goes through CJ and redirects him to the site. CJ remembers advertiser and publisher.
3. Now the visitor makes a purchase.

How does CJ know that a purchase was made and visitor just didn't go away?

Thanks,
Igor.

 

The redirect process drops a cookie on visitor's pc. My guess is that CJ has a software running at merchants' check-out process to track the sales.

 

but merchant can change the script and does not send info to CJ about sales?!

 

Sure they can if they want to. But they might get kicked out of CJ.

 

how CJ will check it? I mean if I will change a script that will not "sometimes" send info about made sales?

 

I don't know how it works but, like in many other situations in life, if they are caught cheating, they might be punished. If they are not caught, cheated ones are punished.

 

I don't think that's it.... It's really big company and bussiness cannot work only on confidence.
There shoule be something more...

 

It's called breach of contract. It can be remedied by a lawsuit.

 

ok, that's possible.
Thanks.