---
title: "Acknowledge Message"
method: PUT
path: "/channels/{target}/ack/{message}"
tags: ["Messaging"]
---

# Acknowledge Message

`PUT /channels/{target}/ack/{message}`

Lets the server and all other clients know that we've seen this message id in this channel.

## Path parameters

- `target` string, required
- `message` string, required

## Response `204`

Success

## Other responses

- `default` — An error occurred.

## Changes

> 6 revisions in range; 3 could not be searched.

- **2026-07-26** `7a23c8b93766` — 1 breaking
  - added `subschema #65, subschema #66, subschema #67, subschema #81, subschema #82, subschema #83, subschema #84, subschema #85, subschema #86, subschema #87, subschema #88, subschema #89, subschema #90, subschema #91, subschema #92, subschema #93, subschema #94, subschema #95` to the response body `oneOf` list for the response status `default`

[Change history](https://skmtc.dev/revolt/apis/revolt-api/changes/channels/:target/ack/:message/put.md)

---

[API](https://skmtc.dev/revolt/apis/revolt-api.md) · [All operations](https://skmtc.dev/revolt/apis/revolt-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/revolt/revolt-api/revisions/a09d9d97fec9/schema)