# Update a carrier

Partially update a carrier. Only provided fields will be updated.

- Omitted fields: Not modified (current value preserved)
- Provided fields: Updated to the new value
- Null values: Clear the field (set to null) where applicable

The carrier type determines which fields can be updated:
- TRUCKLOAD: Can update insurance, safety rating, and FMCSA fields
- AIR, CARTAGE, LINEHAUL, LTL, OCEAN, RAIL: Can only update base carrier fields

Changing the carrier type will affect which specialized fields are available.

Endpoint: PATCH /carriers/{id}
Version: 1.0.0
Security: BearerAuth

## Path parameters:

  - `id` (string, required)
    Resource ID (UUID) or client key
    Example: "550e8400-e29b-41d4-a716-446655440000"

## Response 400 fields (application/json):

  - `error` (string, required)
    Error code

  - `message` (string, required)
    Human-readable error message

## Response 401 fields (application/json):

  - `error` (string, required)
    Error code

  - `message` (string, required)
    Human-readable error message

## Response 404 fields (application/json):

  - `error` (string, required)
    Error code

  - `message` (string, required)
    Human-readable error message

## Response 409 fields (application/json):

  - `error` (string, required)
    Error code

  - `message` (string, required)
    Human-readable error message

## Response 500 fields (application/json):

  - `error` (string, required)
    Error code

  - `message` (string, required)
    Human-readable error message