Payload

getPayload() returns an object ready to send with your API requests. Merge it into your request body so every submission carries its full attribution history.

{
  "tracking": {
    "first_visit_time": "2026-01-01T10:00:00.000Z",
    "first_source": "Google Ads",
    "last_source": "WhatsApp",
    "touches_count": 3,
    "touches": [
      {
        "source": "Google Ads",
        "utm_source": "google",
        "utm_medium": "cpc",
        "utm_campaign": "winter-sale",
        "timestamp": "2026-01-01T10:00:00.000Z"
      }
    ]
  }
}

Fields

Field	Type	Description
first_visit_time	string	ISO timestamp of the visitor's first recorded touch.
first_source	string	The resolved source of the first touch.
last_source	string	The resolved source of the most recent touch.
touches_count	number	Total number of recorded touches.
touches	Touch[]	The full ordered list of touches.

Each entry in touches includes the resolved source, the raw UTM fields when present, and the timestamp it was recorded.