Partners have the ability to add a postback URL in their partner portal.
A postback is a server-to-server notification sent from GoKart to the partner's external system when a conversion event occurs.
It allows you to:
Track conversions in real time
Attribute events back to your users
Sync performance data into your system
Postback Configuration Options
GoKart supports two types of postbacks:
1. Event-Level Postbacks
You can configure postbacks per offer and per event.
This means:
Each offer can have its own configuration
Each event within an offer can trigger a different postback
You can send different data depending on the event type
Example use cases:
Send “Install” events to one endpoint
Send “Purchase” events to a different endpoint
Track multi-event funnels separately
2. Global Postback (Applies to all events)
A Global Postback is a single endpoint that triggers for every conversion event within an offer.
Key behavior:
Fires on all conversions
Useful for quick integrations or full data sync
⚠️ If both options are configured: both postbacks will fire.
For example, if you have:
an event-level postback for “Install – Game X”, and
a global postback
GoKart will send a postback to both endpoints when that event occurs:
one to the event-level postback URL
one to the global postback URL
Available Postback Macros
GoKart supports dynamic macros that are replaced with real conversion values when a postback is fired.
Available Macros
Macro | Description | Example Value |
| Unique click identifier generated at click time |
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| Partner’s internal user ID |
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| Unique offer identifier |
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| Unique event identifier within an offer for a multi-event offer. For single-event offers, it is null. |
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| The transaction value associated with the conversion event (e.g., sale amount). |
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| Custom sub fields 1–15 |
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Example Postback
https://yourdomain.com/postback?click_id={pub_click_id}&user_id={pub_member_id}&offer_id={gk_offer_id}&event_id={cnv_event_id}How Postback Setup Works
Step 1: Choose Scope
Decide if you want:
Event-level postbacks (specific events)
Global postback (all events)
Step 2: Configure Endpoint
Enter your postback URL in the partner portal.
Step 3: Test Integration
Reach out to your POC from the affiliate network or advertiser to trigger a test conversion and verify:
Postback is received
Macros are correctly populated
Events are mapped correctly