> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pagamerican.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Initiate checkout

> Fires when the buyer starts the checkout.

**Event:** `checkout.session.initialized.v2`

Fires the moment the buyer starts the checkout. At this point the form hasn't been filled in yet, so `customer` and `shipping` come empty, `paymentMethod` is `null`, `status` is `waiting_payment`, and the `commission` amounts are zero — the commission doesn't exist yet. There is also no [`amounts` breakdown](/webhooks/overview#the-amounts-breakdown): tax is only calculated at payment time.

## Payload

```json theme={null}
[
  {
    "event": "checkout.session.initialized.v2",
    "body": {
      "version": "v1",
      "orderId": "ord_019c958a-52e4-758d-9013-3cb17485fc9b",
      "platform": "PagAmerican",
      "creatorId": 915,
      "productId": 330,
      "paymentMethod": null,
      "status": "waiting_payment",
      "createdAt": "2026-02-25 16:03:20",
      "approvedDate": null,
      "refundedAt": null,
      "updatedAt": "2026-02-25 16:03:20",
      "customer": {
        "name": "",
        "email": "",
        "phone": null,
        "document": null,
        "country": "us",
        "ip": "203.0.113.10"
      },
      "shipping": {
        "address1": "",
        "address2": "",
        "city": "",
        "state": "",
        "country": "",
        "zipCode": ""
      },
      "products": [
        {
          "id": "1410",
          "name": "Cardio Balance 6 unit kit",
          "offerCode": "qi7leMBt",
          "sku": "CARDIOBALANCE-6BOTTLES",
          "planId": null,
          "planName": "qi7leMBt",
          "quantity": 1,
          "priceInCents": 29400
        }
      ],
      "trackingParameters": {
        "src": null,
        "sck": null,
        "utm_source": "FBjLj699f1438",
        "utm_campaign": "CAMPANHA-X|120240890166600072",
        "utm_medium": "ADSET-Y|120240890236510072",
        "utm_content": "AD-Z|120240890239860072",
        "utm_term": "Facebook_Mobile_Reels"
      },
      "commission": {
        "totalPriceInCents": 29400,
        "gatewayFeeInCents": 0,
        "userCommissionInCents": 0,
        "currency": "usd"
      },
      "isTest": false,
      "supportEmail": "support@example.com"
    }
  }
]
```

`products` lists the cart items at the moment the checkout started, and `trackingParameters` carries the parameters captured from the checkout URL — see [Tracking parameters](/webhooks/overview#tracking-parameters).