Awin gives you the option to either add a new Content Site or to add a new Publisher Account when it comes to tracking multiple websites.
Log in to the Booking Affiliate Platform.
In the top navigation bar, go to: Your account > Other affiliates.
Now each of your websites will have their own AID (affiliate IDs). And you can use this to create unique affiliate links for each website.
Choose which website you want to use before creating your new affiliate links.