> For the complete documentation index, see [llms.txt](https://developer.paddle.com/llms.txt).

# Notification setting already exists

Each notification setting must have a unique combination of destination and configuration.

---

## Example

```json
{
  "error": {
    "type": "request_error",
    "code": "notification_setting_cannot_be_duplicate",
    "detail": "A notification setting with the same destination and configuration already exists.",
    "documentation_url": "https://developer.paddle.com/errors/notifications/notification_setting_cannot_be_duplicate"
  },
  "meta": {
    "request_id": "00000000-0000-0000-0000-000000000000"
  }
}
```

## Details

| Attribute | Value |
| --- | --- |
| Status code | 409 |
| Error code | `notification_setting_cannot_be_duplicate` |
| Error message | A notification setting with the same destination and configuration already exists. |

## Common causes

- You're creating or updating a notification setting with the same destination (URL or email) and configuration as one that already exists.

## Common solutions

- Change the destination or configuration so it doesn't match an existing notification setting.
- Check your existing notification settings — if one already covers this, update it instead of creating a new one.