---
title: "Changes to Add reaction"
method: POST
path: "/v1/inbox/conversations/{conversationId}/messages/{messageId}/reactions"
---

# Changes to Add reaction

`POST /v1/inbox/conversations/{conversationId}/messages/{messageId}/reactions`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 1 of 56 revisions.

- **2026-08-26** `b5344d376e5e` — 2 info

## Changes

- **2026-08-26** `b5344d376e5e` — 2 info
  - added the optional property `messageId` to the response with the `200` status
  - added the optional property `platformMessageId` to the response with the `200` status

---

[Operation](https://skmtc.dev/zernio/apis/zernio-api/docs/v1/inbox/conversations/:conversationId/messages/:messageId/reactions/post.md) · [API](https://skmtc.dev/zernio/apis/zernio-api.md) · [Page](https://skmtc.dev/zernio/apis/zernio-api/changes/v1/inbox/conversations/:conversationId/messages/:messageId/reactions/post)