---
title: "Instagram auto DM: automatic DMs for comments and stories"
description: "Instagram auto DM sends your message to people who comment, reply to a story, mention you or message you. What triggers it, examples, setup and plans."
url: https://replyrep.io/features/instagram-auto-dm
updated: 2026-10-19
---

# Instagram auto DM: what triggers it and how to set it up

An Instagram auto DM is a direct message sent automatically when someone interacts with your account: comments a keyword, replies to a story, mentions you or messages you. ReplyRep sends it about three seconds after the interaction, in your words, through Meta's official API. It only messages people who reached out first, and never cold-messages strangers.

## What is an Instagram auto DM?

An auto DM is a message you write once and Instagram delivers many times, each time someone does the thing you asked for. The trigger is always an interaction with you: a comment, a story reply, a mention, an ad comment or a message in your inbox. The DM is your copy, with their first name filled in, and usually a link.

What an auto DM is not: a bulk message to a list of people who never contacted you. On the official API, automation answers people who interacted first. That rule is what keeps it useful to the person receiving it and safe for the account sending it. If you are wondering whether the account risk is real, read [will auto DM get my Instagram banned](https://replyrep.io/guides/will-auto-dm-get-my-instagram-banned).

## What can trigger an auto DM?

*Triggers ReplyRep can answer*

| Trigger | What happens | Feature page |
| --- | --- | --- |
| Post or reel comment with a keyword | They get your DM, with the link | Comment to DM |
| Reply to your story | Answered the way a comment would be | Story reply automation |
| Someone tags you in their story | A thank-you, a code or a link back | Story mention auto reply |
| Comment under a sponsored post | Price, link and code while they are still looking | Ad comment automation |
| A keyword anywhere, including DMs | One trigger that works on every post, reel, story and DM | Global Triggers |
| An open question in your inbox | An AI reply in your voice | AI auto reply |

## How does an Instagram auto DM work?

1. **Pick the trigger.** A keyword on one post, a keyword across the whole account, a story reply or a mention.
2. **Write the message.** Your words, your emoji and your link. Personalize with their first name.
3. **Someone interacts.** ReplyRep sees the interaction through Meta's official Instagram API.
4. **The DM lands.** About three seconds later, the message is in their inbox. If they reply, the conversation is yours.

## What does a good auto DM look like?

**Fitness coach, free program**
- Comment keyword: PLAN
- Public reply: Just sent it, check your DMs
- DM: Hey {first_name} 💪 Here's the free 4 week home program: / yourbrand.com/program /  / Start with week one even if it feels easy. Reply DONE when you finish it and I'll send week five.

Good auto DMs have the same shape: name, link in the first two lines, one clear next step. Long DMs get skimmed, and a DM that asks for a reply gets more of them. More examples by niche are in [Instagram auto DM examples](https://replyrep.io/guides/instagram-auto-dm-examples).

## Who uses Instagram auto DMs, and for what?

- **Creators** delivering a free guide, a preset pack or a recipe to everyone who comments. See [creators](https://replyrep.io/for/creators).
- **Ecommerce brands** sending the product link and a code to "price?" comments on reels and ads.
- **Coaches** sending a booking link or a webinar seat to everyone who replies to a story.
- **Restaurants and venues** answering "menu" or "book" with the right link, on every post at once with a Global Trigger.
- **Event organizers** sending ticket links on launch day, when comment volume is highest and nobody has time to answer by hand.

**Send your first auto DM today** Free forever with 2,000 DMs a month. No card.

## How do you set up auto DMs in ReplyRep?

1. **Connect Instagram.** Sign in through Meta. ReplyRep never sees your password. You need a Business or Creator account.
2. **Choose where it listens.** One post or reel, every post with a Global Trigger, or your stories.
3. **Set the keyword and write the DM.** Start from a Template Library template for launches, giveaways or lead magnets, or write your own.
4. **Switch on extras if you want them.** On paid plans: a public reply under the comment, a follow check, an email request or a follow up.
5. **Test with your own comment.** Comment your keyword and watch the DM arrive.

That is about four minutes for most people. The full walkthrough is [how to send automatic DMs on Instagram](https://replyrep.io/guides/how-to-send-automatic-dms-on-instagram).

## Which plan includes Instagram auto DMs?

Auto DMs on posts, reels and stories are on every plan, including Free, and so are Default Triggers and AI-generated triggers. The free plan sends 2,000 DMs a month on 1 account. Lite raises that to 10,000, Boost to 40,000 across 3 accounts, and MAX to 400,000 across 5. See [pricing](https://replyrep.io/pricing) for everything else.

|  | Free | Lite | Boost | MAX |
| --- | --- | --- | --- | --- |
| Price | $0 | $10/mo | $25/mo | $100/mo |
| Automated DMs a month | 2,000 | 10,000 | 40,000 | 400,000 |
| Instagram accounts | 1 | 1 | 3 | 5 |
| Post, Reel & Story automation | Included | Included | Included | Included |
| Default Triggers | Included | Included | Included | Included |
| AI-generated triggers | Included | Included | Included | Included |

## What are the limits of Instagram auto DMs?

- **Interaction first.** Auto DMs answer people who commented, replied, mentioned or messaged you. They do not message cold audiences.
- **Meta sets a sending pace.** A viral post can generate comments faster than any tool is allowed to answer them. On paid plans, the [Excess DM Queue](https://replyrep.io/features/viral-post-dm-queue) lines up the overflow instead of dropping it.
- **Professional accounts only.** The official API works with Business and Creator accounts.
- **Instagram only.** ReplyRep automates Instagram. It does not send to Facebook Messenger, WhatsApp, TikTok or SMS.

For the rules in full, read [is Instagram DM automation allowed](https://replyrep.io/guides/is-instagram-dm-automation-allowed).

## Frequently asked questions

### Can I auto DM new followers on Instagram?

ReplyRep only messages people who interacted with you first: a comment, a story reply, a mention or a message. Following you is not one of the triggers it describes. If you want new people in your DMs, ask for a comment keyword in your caption and let comment to DM do the rest.

### Will people know the DM is automated?

The DM goes out exactly as you wrote it, with their first name, your emoji and your line breaks. Most people care that they got the link quickly, not how. Writing it the way you talk matters more than hiding anything.

### Can auto DMs reply to Instagram messages too?

Yes. A Global Trigger answers its keyword in DMs as well as on posts, reels and stories, and AI inbox replies cover the open questions no keyword predicts. Welcome Openers and Conversation Starters give first-time messages something to tap.

### Is there a free Instagram auto DM tool?

Yes. ReplyRep's free plan includes 2,000 automated DMs a month on one account, with post, reel and story automation and 5 Global Triggers. It is free forever, not a trial.

### How fast does the auto DM arrive?

ReplyRep sends it about three seconds after the interaction under normal conditions. On a post that is spiking, Meta's sending limits can slow delivery, and paid plans queue the overflow in order rather than dropping it.

Last updated 2026-10-19. Source: https://replyrep.io/features/instagram-auto-dm