What Is a Click ID? How It Ties Clicks to Conversions

What is a click ID? A click ID (often written click_id) is a unique identifier, generated for each click and attached to a campaign link, so that a conversion that happens later, on another system, can be tied to exactly that click and, through it, to the ad, ad set or creative that produced it. It’s different from a UTM, which identifies the campaign in general but not the individual click.

Where a click ID shows up in practice

In a Telegram funnel, the click ID comes into play when the conversion happens outside the channel, on a third-party platform: the sign-up and the deposit at a sportsbook, casino or broker. In Track4you, that’s how Integrations work (Pro and Enterprise plans):

1. Each integration has a tracking link (https://t4y.io/v2/...), used in ads, in your bio or in channel content.
2. On every click on that link, Track4you generates a unique click ID and sends the person to the platform’s sign-up page with it in the URL, in whichever parameter the platform reads (click_id, afp, subid, aff_sub…).
3. The platform stores the value and, when the conversion happens, returns the same click ID in the S2S postback.
4. Track4you sends the conversion to the pixel: Registration as CompleteRegistration, FTD as the custom event FTD and Deposit as Purchase.

There’s no time limit on Track4you’s side: a conversion that arrives by postback goes to the pixel and becomes a signal for the algorithm even weeks after the click. Whether Ads Manager credits it to a campaign is decided by Meta’s attribution window (by default, 7 days after the click or 1 day after a view).

That’s how an FTD gets tied to the click that produced it, instead of a generic total like “campaign X converted Y times”.

The channel entry follows a different path, the funnel’s: enter_channel is attributed to the click on the bridge page within the attribution window (up to 7 days after the click), with the campaign coming from the ad’s UTMs. The Integrations click ID belongs to the click on the tracking link, not to the channel entry.

Why it matters

Without a click ID (or an equivalent) that travels to the platform and comes back in the postback, there’s no way to know which click generated a given sign-up or deposit; you only see aggregate totals. It plays the same role the GCLID plays in the Google Ads ecosystem, applied to conversions that happen inside the sportsbook or broker.

The most common mistake: losing the click ID along the way

The click ID makes two trips: it arrives in the platform’s sign-up URL and comes back in the postback. If the platform doesn’t read the parameter it arrived in (each one uses its own name: click_id, clickid, afp, subid, sub1, aff_sub…), or if the postback returns a different macro in its place, the conversion arrives with no way to be tied to the click. So before setting it up, confirm with the platform’s support or your affiliate manager that it offers S2S postback with a click ID, and which parameter it uses for the affiliate sub-ID.

Click ID vs UTM

A UTM identifies the campaign, ad set and ad at an aggregate level. That’s useful for reporting, but it doesn’t tie an individual click to an individual conversion. The click ID solves exactly that: every click has its own identifier, which is what makes postback attribution work. The two coexist, too: the integration’s tracking link accepts UTMs, which are recorded along with the click.

See the complete guide to tracking Telegram conversions and the iGaming S2S postback guide to see the click ID at work across the full flow, from click to deposit.