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A common technique that affiliates use on their tracking links is called "sub-ids". These are identifiers that an affiliate can pass in to help understand how their own marketing techniques are working. For example if I have three different banner ads that I'm using to drive traffic to the merchant's site through my own affiliate link, I would want to append a subid to the link so I can track the effectiveness. The process is pretty straight forward. First the affiliate logs into their dashboard which looks something like this:
The affiliate then clicks on Manage Links as shown above. After they click "New Link":
they will select which managed link they want to create and click next as shown below.
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The affiliate then names the link they just created and are creating, then clicks save as shown below.
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