# Update Custom Field

Update a custom field

Below is sample cURL request to update a custom field. Use raw JSON format to call the API. Length of the array while update action should be one only.

{% file src="<https://3408618572-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MkMQ1evvT-4Hx1hloPt%2Fuploads%2FWhZTHAOtCoOldLaFzlnr%2Fsample_curl%20-%20update_custom_field.txt?alt=media&token=6dbe224f-6397-4d85-85b8-38608d3bdab3>" %}

<mark style="color:green;">`POST`</mark>[`{{apiUrl}}custom_fields/add_update_custom_field`](https://api.evitalrx.in/v1/custom_fields/add_update_custom_field)

#### Request Body

| Name                                     | Type   | Description                                                                                                                                                                                                                                       |
| ---------------------------------------- | ------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| apikey<mark style="color:red;">\*</mark> | String | Authentication token                                                                                                                                                                                                                              |
| entity                                   | Number | type of the entity                                                                                                                                                                                                                                |
| custom\_fields                           | Array  | <p>Array of custom field object of length one containing id attribute key and module. Update one custom field at a time.<br>For ex:<br>{id: string, attribute\_key: string, module: string }<br><br>Valid modules are:<br>sales and customers</p> |
| action                                   | String | update                                                                                                                                                                                                                                            |

{% tabs %}
{% tab title="200 Update success" %}

```json
{
    "status_code": "1",
    "status_message": "Success",
    "datetime": "2024-09-24 15:14:36",
    "data": null
}
```

{% endtab %}

{% tab title="Invalid update id" %}

```json
{
    "status_code": "0",
    "status_message": "update failed",
    "datetime": "2024-09-24 15:14:36",
    "data": null
}
```

{% endtab %}
{% endtabs %}