# Updating an existing Attachment

This endpoint returns structured Attachment objects.
As with all Kantata OX API endpoints, the returned data will be referenced in sorted order in the results array
and will be indexed by ID in the attachments top-level JSON key.
Please see our Response Format section for more information.

Endpoint: PUT /attachments/{id}
Version: 1.0.0

## Path parameters:

  - `id` (integer, required)
    The ID of the Model.

## Request fields (application/json):

  - `attachment` (object)

  - `attachment.filename` (string)
    Used to rename an already existing attachment within Kantata OX.

## Response 200 fields (application/json):

  - `count` (integer)

  - `meta` (object)

  - `meta.count` (integer)

  - `meta.page_count` (integer)

  - `meta.page_number` (integer)

  - `meta.page_size` (integer)

  - `results` (array)

  - `results.key` (string)

  - `results.id` (string)

  - `attachments` (object)

## Response 400 fields (application/json):

  - `errors` (array)

  - `errors.type` (string)

  - `errors.message` (string)