---
title: "Create a new driver-trailer assignment"
method: POST
path: "/driver-trailer-assignments"
tags: ["Driver-Trailer Assignments"]
---

# Create a new driver-trailer assignment

`POST /driver-trailer-assignments`

## Request

- Base URL: `https://api.samsara.com`
- URL: `https://api.samsara.com/driver-trailer-assignments`
- Auth: HTTP bearer

Create a new driver-trailer assignment

 <b>Rate limit:</b> 5 requests/sec (learn more about rate limits <a href="https://developers.samsara.com/docs/rate-limits" target="_blank">here</a>).

To use this endpoint, select **Write Assignments** under the Assignments category when creating or editing an API token. <a href="https://developers.samsara.com/docs/authentication#scopes-for-api-tokens" target="_blank">Learn More.</a>
 

 **Submit Feedback**: Likes, dislikes, and API feature requests should be filed as feedback in our <a href="https://forms.gle/zkD4NCH7HjKb7mm69" target="_blank">API feedback form</a>. If you encountered an issue or noticed inaccuracies in the API documentation, please <a href="https://www.samsara.com/help" target="_blank">submit a case</a> to our support team.

## Request body

- TrailerAssignmentsCreateDriverTrailerAssignmentRequestBody: Create a new driver-trailer assignment
  - `driverId` string, required: ID of the driver. This can be either a unique Samsara ID or an [external ID](https://developers.samsara.com/docs/external-ids) for the driver.
  - `startTime` string: The start time in RFC 3339 format. The time needs to be current or within the past 7 days. Defaults to now if not provided
  - `trailerId` string, required: ID of the trailer. This can be either a unique Samsara ID or an [external ID](https://developers.samsara.com/docs/external-ids) for the trailer.

## Response `200`

OK response.

- TrailerAssignmentsCreateDriverTrailerAssignmentResponseBody
  - `data` PostDriverTrailerAssignmentsResponseBodyResponseBody, required: Response after successfully submitting a Driver Trailer Assignment
    - `createdAtTime` string, required: Time when the driver trailer assignment was created, in RFC 3339 format
    - `driverId` string, required: Samsara ID for the driver that this assignment is for.
    - `id` string, required: Samsara ID for the assignment.
    - `startTime` string, required: Time when the driver trailer assignment starts, in RFC 3339 format
    - `trailerId` string, required: Samsara ID of the trailer
    - `updatedAtTime` string, required: Time when the driver trailer assignment was last updated, in RFC 3339 format

## Other responses

- `401`: Unauthorized response.
- `404`: Not Found response.
- `405`: Method Not Allowed response.
- `413`: Content Too Large response.
- `429`: Too Many Requests response.
- `500`: Internal Server Error response.
- `501`: Not Implemented response.
- `502`: Bad Gateway response.
- `503`: Service Unavailable response.
- `504`: Gateway Timeout response.
- `default`: Bad Request response.

---

[API](https://skmtc.dev/samsara/apis/samsara-api.md) - [All operations](https://skmtc.dev/samsara/apis/samsara-api/llms.txt) - [OpenAPI document](https://skmtc.dev/samsara/apis/samsara-api/revisions/a9e35d4999be?raw)