---
title: "Send reaction message"
method: POST
path: "/messages/reaction"
tags: ["Messages"]
---

# Send reaction message

`POST /messages/reaction`

Reacts to a message previously exchanged in the conversation. `reaction.message_id` is the WhatsApp id of the message being reacted to, and must belong to the workspace. Send an empty `emoji` to remove a reaction.

Requires an open service window: the recipient must have messaged the business in the last 24 hours. Use `POST /messages/template` to reach recipients outside that window.

## Request body

- object
  - `from` string, required — WhatsApp id of the sender phone number
  - `to` string, required — Recipient phone number, digits only, including country code
  - `reaction` object — The reaction to send
    - `message_id` string — WhatsApp id of the message being reacted to
    - `emoji` string — Emoji of the reaction. Send an empty string to remove it

## Response `200`

Reaction sent successfully

- object
  - `id` string, uuid, required — Id of the created message

## Other responses

- `400` — Bad request, invalid input data or missing `reaction.message_id`
- `401` — Unauthorized
- `404` — Reacted message or sender phone number not found

---

[API](https://skmtc.net/indigohive/apis/cogfy-messenger-public-api.md) · [All operations](https://skmtc.net/indigohive/apis/cogfy-messenger-public-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/indigohive/cogfy-messenger-public-api/revisions/30bd33ee45c9/schema)