gk_click_id

Overview

The gk_click_id is GoKart’s unique session identifier that links a user’s click to their eventual conversion.
When a user clicks an offer link, GoKart generates a unique gk_click_id and records it along with contextual metadata such as the offer ID, member ID, and timestamp.
In the offer’s tracking link (URL), GoKart requires that the {gk_click_id} macro be appended in order to successfully pass the ID downstream to the advertiser or third-party tracking system (e.g., AppsFlyer, TUNE, etc.).
When a conversion is received, GoKart references the gk_click_id in the incoming postback from the advertiser or tracking system to identify the correct click record and member to attribute the conversion.

When the advertiser or tracking system (e.g., TUNE or AppsFlyer) fires a postback, it returns the same gk_click_id that was generated during the click.
GoKart matches the gk_click_id from the postback with the stored click record.
Upon validation, the conversion is recorded.
Example postback:
```
https://api.getgokart.ai/postback?gk_click_id=efb2a7d2-c01a-4e3f-b8a1-81b4568e9f32&event_id=win_10_games
```
Notice how the same gk_click_id (efb2a7d2-c01a-4e3f-b8a1-81b4568e9f32) generated after the click in the example above is passed back in the postback.

Attribute	Description
Format	Alphanumeric UUID
Generated	At the time of click redirect
Stored	Persistently within GoKart’s click database
Used in	Tracking links, postbacks, click/conversion reports, and attribution logs
Required in	All offer tracking links All incoming postbacks for conversion attribution

Each gk_click_id is unique per click session and can only be used once for conversion credit. GoKart allows only one conversion per click ID and member ID combination. This ensures one valid conversion per click and member to prevent double crediting.
If a postback is received with an already processed gk_click_id that’s tied to a member who already has a recorded conversionId, GoKart automatically flags it as a duplicate and rejects it (unless “Allow Repeat Conversions” is enabled).

If a gk_click_id is missing or invalid in the incoming postback, GoKart cannot map the conversion to a valid click.
Such conversions will be unattributed and logged as errors in the History Logs.

When reconciling data between GoKart and a tracking system (AppsFlyer or TUNE), the gk_click_id is the only reliable identifier for matching specific conversions.
Within GoKart, gk_click_id is visible and searchable across all reports.
In the advertiser’s tracking system, it will appear in the parameter used to capture the click ID—for example, sub1 in the example above.
This allows teams to trace a user’s full attribution path and pinpoint mismatches, missing parameters, or untracked conversions.