---
title: "Posts a typing event to a thread, on behalf of a user."
method: POST
path: "/chat/threads/{chatThreadId}/typing"
tags: ["TypingNotifications"]
---

# Posts a typing event to a thread, on behalf of a user.

`POST /chat/threads/{chatThreadId}/typing`

## Path parameters

- `chatThreadId` string, required

## Query parameters

- `api-version` string, required

## Request body

- SendTypingNotificationRequest — Request payload for typing notifications.
  - `senderDisplayName` string — The display name of the typing notification sender. This property is used to populate sender name for push notifications.

## Response `200`

Request successful.

## Other responses

- `401` — Unauthorized.
- `403` — Forbidden.
- `429` — Too many requests.
- `503` — Service unavailable.

## Changes

- **2026-07-13** `65363e3c24e3` — 2 info
  - api tag `TypingNotifications` added
  - api tag `Messages` removed
- **2026-07-13** `e3e45a46545e` — 1 info
  - api operation id `SendTypingNotification` removed and replaced with `ChatThread_SendTypingNotification`
- **2021-05-19** `4c5323153682` — 3 info
  - api operation id `ChatThread_SendTypingNotification` removed and replaced with `SendTypingNotification`
  - api tag `Messages` added
  - api tag `TypingNotifications` removed

[Change history](https://skmtc.dev/azure/apis/communication-chat/changes/chat/threads/:chatThreadId/typing/post.md)

---

[API](https://skmtc.dev/azure/apis/communication-chat.md) · [All operations](https://skmtc.dev/azure/apis/communication-chat/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/azure/communication-chat/revisions/57a59d1b8530/schema)