NATS3 Link Codes
From TMM Wiki
Jump to navigationJump to searchAffiliates get their linkcodes on the Affiliate Link Code page. There are two types of link codes: encoded and unencoded. The difference is depicted in Figures 1.1, 1.1a, and 1.1b:
As you can see, encoded linkcodes provide the most affiliate protection: the affiliate, campaign, program, and site information cannot be altered in the query string.