---
title: "Mark conversation unread"
method: POST
path: "/conversations/{conversationId}/unread"
tags: ["Conversations"]
---

# Mark conversation unread

`POST /conversations/{conversationId}/unread`

## Request

- Base URL: `https://api.sequenzy.com/api/v1`
- URL: `https://api.sequenzy.com/api/v1/conversations/{conversationId}/unread`
- Auth: HTTP bearer

Sets the conversation's unread flag and marks its latest received message unread.

## Path parameters

- `conversationId` string, required

## Response `200`

Conversation marked unread

- object
  - `success` boolean
  - `conversation` object
    - `id` string
    - `hasUnread` boolean

## Other responses

- `401`: Unauthorized
- `403`: API key is missing the conversations:write scope
- `404`: Conversation not found (code conversation_not_found)

## Changes

- **2026-10-16** `db3873ca3d4d`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/sequenzy/apis/sequenzy-api/changes/conversations/:conversationId/unread/post.md)

---

[API](https://skmtc.dev/sequenzy/apis/sequenzy-api.md) - [All operations](https://skmtc.dev/sequenzy/apis/sequenzy-api/llms.txt) - [OpenAPI document](https://skmtc.dev/sequenzy/apis/sequenzy-api/revisions/3d816357b738?raw)