# Update arm

This endpoint updates an arm.

Endpoint: PUT /v3/companies/{companyId}/custom-fields/{customFieldId}/arms/{armId}
Version: v3
Security: Bearer

## Path parameters:

  - `companyId` (string, required)
    Identifier for company.
    Example: "4974a66b-7493-4f41-908c-58ba81093947"

  - `customFieldId` (string, required)
    Identifier for custom field.
    Example: "4974a66b-7493-4f41-908c-58ba81093947"

  - `armId` (string, required)
    Identifier for arm.
    Example: "4974a66b-7493-4f41-908c-58ba81093947"

## Request fields (application/json):

  - `id` (string)
    Arm id.

  - `name` (string, required)
    Name of the arm.
    Example: "US Employee"

  - `audiences` (array)

  - `audiences.name` (string, required)
    Name of the audience.
    Example: "US Employee"

  - `audiences.predicates` (array)

  - `action` (any, required)

## Response 400 fields (application/json):

  - `debugIdentifier` (string)
    Link to debug the error internally.

  - `errorMessages` (array)

  - `errorMessages.errorCode` (string)
    Error code to identify the specific errors.

  - `errorMessages.message` (string)
    Message containing details of error.

  - `errorMessages.errorParameters` (array)
    Error message parameters.

  - `errorMessages.errorParameters.name` (string)
    Parameter name

  - `errorMessages.errorParameters.value` (string)
    Parameter value

  - `errorMessages.errorDetail` (string)
    More details about the error.

## Response 401 fields (application/json):

  - `debugIdentifier` (string)
    Link to debug the error internally.

  - `errorMessages` (array)

  - `errorMessages.errorCode` (string)
    Error code to identify the specific errors.

  - `errorMessages.message` (string)
    Message containing details of error.

  - `errorMessages.errorParameters` (array)
    Error message parameters.

  - `errorMessages.errorParameters.name` (string)
    Parameter name

  - `errorMessages.errorParameters.value` (string)
    Parameter value

  - `errorMessages.errorDetail` (string)
    More details about the error.

## Response 403 fields (application/json):

  - `debugIdentifier` (string)
    Link to debug the error internally.

  - `errorMessages` (array)

  - `errorMessages.errorCode` (string)
    Error code to identify the specific errors.

  - `errorMessages.message` (string)
    Message containing details of error.

  - `errorMessages.errorParameters` (array)
    Error message parameters.

  - `errorMessages.errorParameters.name` (string)
    Parameter name

  - `errorMessages.errorParameters.value` (string)
    Parameter value

  - `errorMessages.errorDetail` (string)
    More details about the error.

## Response 404 fields (application/json):

  - `debugIdentifier` (string)
    Link to debug the error internally.

  - `errorMessages` (array)

  - `errorMessages.errorCode` (string)
    Error code to identify the specific errors.

  - `errorMessages.message` (string)
    Message containing details of error.

  - `errorMessages.errorParameters` (array)
    Error message parameters.

  - `errorMessages.errorParameters.name` (string)
    Parameter name

  - `errorMessages.errorParameters.value` (string)
    Parameter value

  - `errorMessages.errorDetail` (string)
    More details about the error.


## Response 200 fields