With the introduction of Apple's Intelligent Tracking Prevention 2.0 for their Safari browser the owners of affiliate programs worry that their statistics might not be as accurate as before. While this might be true for some affiliate programs, for the most programs operating Post Affiliate Pro this doesn't really change anything. Let us however discuss the specifics.
What ITP 2.0 actually does is that it prevents the creation of 3rd party cookies, this can affect how Post Affiliate Pro tracks only in 2 specific cases:
2. Customer lands on domain A and the sale is completed on domain B
If the customer lands on domain A where click tracking executes and is prohibited by ITP to create 3rd party cookies and sale is made on domain B where sale tracking code executes and the 1st party cookie from domain A isn't available. In this case it will again only track based on IP address.
is to use Redirect links which would create a 3rd party cookie which would be accessible to the sale tracking code on all domains OR a more difficult solution would be to resend the affiliate details to domain B so it can create a 1st party cookie for this domain as well, this can only be handled programmatically on your side.