---
source_url: https://www.pubnub.com/docs/sdks/rest-api/message-actions-introduction
title: Message Actions introduction
---

# Message Actions introduction

> For AI agents: documentation index at https://www.pubnub.com/llms-full.txt

With the Message Actions feature, you can add actions to messages that are already published. These actions can be useful for delivery acknowledgments, read receipts, and reactions such as emojis. You can provide any custom action as long as it's a string.

Fore more information, refer to [Message Actions](https://www.pubnub.com/docs/pub-sub/message-actions/overview.md). **Note:** Message Actions vs. Message Reactions **Message Actions** is the flexible, low-level API for adding any metadata to messages (read receipts, delivery confirmations, custom data), while **Message Reactions** specifically refers to using Message Actions for emoji/social reactions. In PubNub [Core](https://www.pubnub.com/docs/sdks.md) and [Chat](https://www.pubnub.com/docs/chat/overview.md) SDKs, the same underlying Message Actions API is referred to as **Message Reactions** when used for emoji reactions - it is the same functionality, just different terminology depending on the use case.