> For the complete documentation index, see [llms.txt](https://docs.coda.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.coda.co/codapay/recurring-payments-coming-soon/webhook-notifications.md).

# Webhook Notifications

This reference describes how to receive and process server-to-server webhook notifications from Codapay. These notifications keep your backend synchronized with the transaction status as a user progresses through the payment flow.

### Overview

Codapay uses webhooks to notify your "Complete Notification URL" whenever a transaction reaches a final state or a critical milestone.

{% hint style="info" %}
Ensure your "Complete Notification URL" is configured in the Publisher Portal. Refer to the [Set up payments](/codapay/getting-started/set-up-payments.md) guide for detailed instructions.
{% endhint %}

### Event Types

For Codapay integrations, your endpoint should be prepared to handle the following `eventType` values:

| Event Type               | Type                                                         | Description                                          |
| ------------------------ | ------------------------------------------------------------ | ---------------------------------------------------- |
| `PAYMENT_METHOD_ADDED`   | [Payment Method notification](#payment-method-notifications) | The shopper successfully saved a new payment method. |
| `PAYMENT_METHOD_REMOVED` | [Payment Method notification](#payment-method-notifications) | The shopper removed a saved payment method.          |

### Notification Payload Structure

Notifications are sent as a `POST` request with a JSON body. Each type of notification has a specific structure and content.

#### Payment Method Notifications

<table><thead><tr><th width="185.33203125">Field</th><th width="117.671875">Type</th><th>Description</th></tr></thead><tbody><tr><td>eventType</td><td>string</td><td>The specific event type being reported (e.g., <code>PAYMENT_METHOD_ADDED</code>)</td></tr><tr><td>timestamp</td><td>string</td><td>The timestamp of when the event occurred</td></tr><tr><td>shopper</td><td>object</td><td>An object containing shopper details such as ID, email, or partner-specific identifiers.</td></tr><tr><td>paymentMethod</td><td>object</td><td>Information regarding the payment instrument used (e.g., token, card type, last four digits).</td></tr></tbody></table>

**PAYMENT\_METHOD\_ADDED**

This notification is sent when a new card is successfully saved and linked to the shopper profile.

**Notification Payload**

```json
{
  "eventType": "PAYMENT_METHOD_ADDED",
  "timestamp": "2025-06-19T02:48:39.568907Z",
  "shopper": {
    "id": "shp_sg197861636b40021",
    "partner_shopper_id": "test_partner_123_Id",
    "email": "test@example.com"
  },
  "paymentMethod": {
    "id": "pmt_sg1000616a1900024",
    "type": "card",
    "card": {
      "lastFour": "7263",
      "expirationMonth": "04",
      "expirationYear": "2027"
    }
  }
}
```

### Responding to Notifications

To acknowledge receipt of the notification, your server must respond with a `200 OK` and the following JSON body:

```json
{
  "ResultCode": 0
}
```

Retry Policy If no valid response is received, Codapay will re-send the notification 3 times at 5-minute intervals. If all attempts fail, an email alert will be triggered to your technical contact.


---

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