---
title: "POST /api/channels/{channel_id}/messages/{message_id}/ack/"
method: POST
path: "/api/channels/{channel_id}/messages/{message_id}/ack/"
tags: ["api"]
---

# POST /api/channels/{channel_id}/messages/{message_id}/ack/

`POST /api/channels/{channel_id}/messages/{message_id}/ack/`

## Path parameters

- `channel_id` string, required
- `message_id` string, required

## Request body

- MessageAcknowledgeSchema
  - `manual` boolean
  - `mention_count` integer
  - `flags` 0 | 1 | 2 | 4
  - `last_viewed` integer
  - `token` string

## Response `200`

No description available

## Other responses

- `403` — No description available

## Changes

- **2026-08-02** `034b4e879932` — 1 info
  - endpoint added

[Change history](https://skmtc.dev/spacebarchat/apis/spacebar-server/changes/api/channels/:channel_id/messages/:message_id/ack/post.md)

---

[API](https://skmtc.dev/spacebarchat/apis/spacebar-server.md) · [All operations](https://skmtc.dev/spacebarchat/apis/spacebar-server/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/spacebarchat/spacebar-server/revisions/3130201b9ba1/schema)