> For the complete documentation index, see [llms.txt](https://requestmechanic.gitbook.io/request-mechanic-api-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://requestmechanic.gitbook.io/request-mechanic-api-documentation/user/owner-registration-details-step-3-update.md).

# Owner Registration Details - Step 3(Update)

The `PUT /user/registration/step3/owner/` endpoint allows users to complete or update the third step of the owner registration process, including specifying car details.

***

#### Parameters

| **Name** | **Type** | **In** | **Description**                             | **Required** |
| -------- | -------- | ------ | ------------------------------------------- | ------------ |
| `data`   | Object   | Body   | The details of the owner's car information. | Yes          |

***

#### Request Body Fields

| **Field**      | **Type**          | **Description**                                                                   |
| -------------- | ----------------- | --------------------------------------------------------------------------------- |
| `id`           | String            | The unique identifier for the registration. Must be between 1 and 255 characters. |
| `car_brand`    | Object            | Details about the car brand.                                                      |
| **`name`**     | String            | The name of the car brand. Must be between 1 and 255 characters.                  |
| `car_brand_id` | Integer           | The unique ID of the car brand. Required.                                         |
| `car_model`    | String (nullable) | The model of the car. Maximum length of 255 characters.                           |

***

#### Responses

| **Code** | **Description**                                 |
| -------- | ----------------------------------------------- |
| `200`    | The registration step was successfully updated. |

**Response Example:**

```json
{
  "id": "owner_12345",
  "car_brand": {
    "id": 1,
    "name": "Toyota"
  },
  "car_brand_id": 1,
  "car_model": "Camry"
}
```