Every affiliate account is identified by a unique code, known as the Affiliate ID (AID). This is automatically added to all the products created in the Partner Centre.
The AID is a unique number which identifies your affiliate account and enables us to track your commission. The number itself will always start with a ‘1’, ‘3’, ‘8’ or’ 9’. You can find your AID number on the Partner Centre Dashboard. Every reservation made on a Booking.com page with the AID included in the URL address is included in your account.
The link below is an example of your affiliate URL for making reservations: http://www.booking.com/index.html?aid=xxxxx
Please make sure that your affiliate ID is always in the URL, to avoid losing commission. This is the only way for us to track your affiliate reservations.