Click ID
The unique identifier generated for each click on an affiliate link, used to match a later conversion back to its source.
A click ID is the primary key of performance tracking: every click on a tracking link gets a unique token, which travels through registration and deposit and returns in the postback so the conversion lands on the right affiliate, campaign and creative.
What breaks it
Losing the click ID between landing page and registration form is the classic integration bug — usually a redirect that strips query parameters or a registration flow on a different domain. Operators should persist the ID server-side at first touch, not rely on it surviving in the URL.
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