> For the complete documentation index, see [llms.txt](https://docs.cardspro.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cardspro.com/api/cards/card-email-update.md).

# Card Email Update

Updates the email address associated with a card.

**Endpoint:** `POST /{san}/update-email`

**Path Parameters:**

* `san` - Secure Account Number (card identifier)

**Content-Type:** `application/json`

**Request Body:**

```json
{
  "email": "user@example.com"
}
```

**Request Parameters:**

| Field   | Type   | Required | Constraints        | Description       |
| ------- | ------ | -------- | ------------------ | ----------------- |
| `email` | String | Yes      | Valid email format | New email address |

**Response:**

```json
{
  "success": true,
  "message": "Email updated successfully"
}
```

**Response Parameters:**

<table><thead><tr><th width="155.666748046875">Field</th><th width="175.3333740234375">Type</th><th>Description</th></tr></thead><tbody><tr><td><code>success</code></td><td>Boolean</td><td>Indicates if the operation was successful</td></tr><tr><td><code>message</code></td><td>String</td><td>Descriptive message about the operation result</td></tr></tbody></table>