---
title: "What is a keyword trigger on Instagram?"
description: "What is a keyword trigger on Instagram? How a comment or DM keyword starts an automation, how to choose good keywords, and examples."
url: https://replyrep.io/glossary/keyword-trigger
updated: 2026-10-19
---

# What is a keyword trigger on Instagram?

A keyword trigger is a word or phrase that starts an Instagram automation when someone comments it or sends it in a DM. Comment LINK under a reel and the tool sends the link by DM. In ReplyRep, keywords on a single post are unlimited on every plan, and Global Triggers listen for a keyword across the whole account.

## How does a keyword trigger work?

You attach a keyword to a post, reel, story or your DMs, and write the reply. When a comment or message contains the keyword, the automation sends the DM. Comments without it are ignored, so normal conversation under your post stays untouched. Each matching comment gets one [private reply](https://replyrep.io/glossary/private-reply), the most Meta allows until the person responds.

## What are good keyword trigger examples?

| Keyword | Caption call to action | What the DM sends |
| --- | --- | --- |
| GUIDE | Comment GUIDE for the free guide | The download link |
| PRICE | Comment PRICE for details | Price, link and shipping time |
| BOOK | Comment BOOK to grab a slot | Your booking page |
| CODE | Comment CODE for 10% off | A discount code and shop link |

## How do you choose a good keyword?

- **One short word**, easy to type on a phone.
- **Unusual enough** that people won't type it by accident. "YES" or "LOVE" fire on ordinary comments.
- **Written in capitals in the caption**, so it is obvious what to comment.
- **Different for each offer**, so every keyword maps to exactly one DM.

## How does ReplyRep handle keyword triggers?

Keywords on a single post are unlimited on every plan, and you can set them before a post is published. [Global triggers](https://replyrep.io/glossary/global-trigger) work account-wide (Free 5, Lite 20, Boost 50, MAX 500). AI-generated triggers suggest keywords for a post. See [comment-to-DM](https://replyrep.io/features/instagram-comment-to-dm), [global keyword triggers](https://replyrep.io/features/global-keyword-triggers) and [the best Instagram comment keywords](https://replyrep.io/guides/best-instagram-comment-keywords).

**Pick a keyword, write a DM, done** Your first automation takes about four minutes.

## Related terms

- [Comment-to-DM](https://replyrep.io/glossary/comment-to-dm): the automation a keyword starts.
- [Global trigger](https://replyrep.io/glossary/global-trigger): a keyword that works everywhere.

Sources:
- [Meta: Private replies (Instagram Platform)](https://developers.facebook.com/documentation/instagram-platform/private-replies)

## Frequently asked questions

### What is the best keyword for Instagram comment automation?

A single short word tied to the offer, like GUIDE, RECIPE, PRICE or BOOK. Avoid common words such as YES or LOVE that people type anyway, and use a different keyword for each offer so the right DM always goes out.

### Can I use more than one keyword on a post?

Yes. In ReplyRep, keywords on a single post are unlimited on every plan, so one post can answer GUIDE and PRICE with different DMs. Each comment still gets only one private reply.

### Do keyword triggers work in DMs and story replies?

Yes. A keyword can start an automation from a comment, a story reply or a direct message. Global triggers are the easiest way to cover all of them with one keyword.

### Do keyword triggers work on posts I haven't published yet?

In ReplyRep, yes. You can automate a post before you publish it, so the first comments get answered the moment it goes live. That matters most on launches, when the first hour brings the most comments.

Last updated 2026-10-19. Source: https://replyrep.io/glossary/keyword-trigger