---
title: "Reply to a support ticket."
method: POST
path: "/v1/support/tickets/{ticket_identifier}/messages"
tags: ["Support"]
---

# Reply to a support ticket.

`POST /v1/support/tickets/{ticket_identifier}/messages`

## Path parameters

- `ticket_identifier` string, required

## Request body

- CreateMessageRequest
  - `body` string, required
  - `author_type` 'customer' | 'mixpeek' — Who wrote a message — the customer or the Mixpeek team.
  - `attachments` SupportAttachment[]
    - `filename` string, required
    - `url` string, nullable
    - `storage_uri` string, nullable
    - `mime_type` string, nullable
    - `size_bytes` integer, nullable

## Response `200`

Successful Response

- MessageResponse
  - `message_id` string, required
  - `ticket_id` string, nullable
  - `organization_id` string, nullable
  - `author_type` 'customer' | 'mixpeek', required — Who wrote a message — the customer or the Mixpeek team.
  - `author` SupportActor — Lightweight snapshot of who created a ticket/message.
    - `user_id` string, nullable
    - `email` string, nullable
    - `name` string, nullable
  - `body` string, required
  - `attachments` SupportAttachment[]
    - `filename` string, required
    - `url` string, nullable
    - `storage_uri` string, nullable
    - `mime_type` string, nullable
    - `size_bytes` integer, nullable
  - `created_at` string, date-time, nullable

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `422` — Validation Error
- `500` — Internal Server Error

---

[API](https://skmtc.net/mixpeek/apis/mixpeek-api.md) · [All operations](https://skmtc.net/mixpeek/apis/mixpeek-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/mixpeek/mixpeek-api/versions/23e05292e326/schema)