---
title: "Instagram comment to DM: send the link automatically"
description: "How Instagram comment to DM works: someone comments your keyword and gets your link by DM in seconds. Setup, examples, plans and the rules worth knowing."
url: https://replyrep.io/features/instagram-comment-to-dm
updated: 2026-10-19
---

# Instagram comment to DM, set up in minutes

Instagram comment to DM is an automation that sends a direct message to anyone who comments a chosen keyword on your post or reel. With ReplyRep, someone comments LINK and gets your DM, link included, about three seconds later, through Meta's official API. Comments without the keyword are left alone, and only people who commented first are messaged.

## What is Instagram comment to DM?

Comment to DM turns the most common caption on Instagram, "comment LINK and I'll send it to you", into something that actually happens without you. You pick a keyword, you write the message, and every comment containing that keyword triggers a private DM to the person who wrote it. Their first name is filled in, your words go out exactly as you wrote them, and the link lands where they were already typing.

The difference from answering by hand is timing. Reach on a reel often peaks while you are asleep or filming the next thing. Comment to DM answers about three seconds after the comment, at 2am or at 2pm, for as long as the post keeps moving. Comments that don't contain the keyword, like "this looks unreal", are left alone, so you are never messaging people who didn't ask.

If you want the full picture of what can be automated on Instagram, start with the [Instagram DM automation guide](https://replyrep.io/guides/instagram-dm-automation). This page is about the comment trigger itself.

## How does comment to DM work?

1. **You set a keyword on a post or reel.** Pick a word that is easy to type and hard to use by accident: GUIDE, RECIPE, DROP. Keywords on a single post are unlimited on every plan.
2. **Someone comments it.** ReplyRep watches the comments on that post through Meta's official Instagram API. A comment containing the keyword is a match; every other comment is ignored.
3. **The DM goes out.** Your message, with their first name and your link, lands in their inbox about three seconds after they commented.
4. **Optional extras run.** On paid plans you can also reply publicly under the comment, check they follow you first, ask for their email, or send a follow up later. Each one is a switch, not a requirement.

## What does a comment to DM automation look like?

Here is a complete one for a recipe creator. The caption says "Comment RECIPE and I'll DM you the full method". Everything below is what the commenter sees.

**Recipe reel**
- Comment keyword: RECIPE
- Public reply: Sent it your way, check your DMs
- DM: Hey {first_name}, here's the full method for the 20 minute sourdough focaccia 👇 / yourbrand.com/focaccia /  / Save it before you lose it. Tell me how yours turns out.
- Follow up: Did the focaccia rise for you? If it didn't, the troubleshooting section is right under the method.

Three things make that work. The keyword matches the caption exactly, so nobody has to guess. The DM opens with their name and gets to the link in the first line. And it ends with an invitation to reply, which turns a one-way delivery into a conversation. For more wording ideas, see [Instagram DM copy that converts](https://replyrep.io/guides/instagram-dm-copy-that-converts) and the [lead magnet templates](https://replyrep.io/templates/lead-magnet).

## When should you use comment to DM?

- **Creators with a free resource.** "Comment GUIDE" on a carousel, and the PDF arrives by DM. This is the classic [lead magnet delivery](https://replyrep.io/use-cases/lead-magnet-delivery) setup.
- **Ecommerce drops.** "Comment DROP for early access" on the teaser reel, then send the product page and a launch code when it goes live.
- **Coaches filling a webinar.** "Comment SEAT" and the registration link goes out, while the reel is still being watched.
- **Affiliate creators.** "Comment LINK" under a product review sends the tracked link without putting it in your bio.
- **Local businesses.** A salon posts this week's openings with "Comment BOOK", and the booking page arrives by DM.

**Try it on your own post** The free plan includes 2,000 DMs a month. Set a keyword, comment it yourself, and watch the DM land.

## How do you set up comment to DM in ReplyRep?

1. **Connect your Instagram account.** You sign in through Meta's own login. ReplyRep never asks for your Instagram password. Your account needs to be a professional account, Business or Creator, which is free to switch to in the Instagram app.
2. **Pick the post or reel.** Choose a live post, or set the automation up on a post before you publish it. Automating posts before they go live is included on every plan.
3. **Set the keyword.** Use the word your caption asks for. Not sure which words people will use? AI-generated triggers can suggest them for a post, and you keep the ones you like.
4. **Write the DM.** Your words, your emoji, your line breaks, plus the link. Start from the Template Library if you would rather edit than start blank.
5. **Test it.** Comment your own keyword and check the DM arrives before anyone else sees it.

Most people are live in about four minutes. The step-by-step version, with screenshots of each decision, is in [how to set up comment to DM](https://replyrep.io/guides/how-to-set-up-comment-to-dm).

## Which ReplyRep plan includes comment to DM?

Comment to DM on posts, reels and stories is included on every plan, including Free. What changes between plans is how many DMs you can send a month, how many accounts you can connect, and which extras switch on. Public comment replies, Follow-Gated DMs and the Email Collector are on Lite and up, from $10 a month. Full details are on [pricing](https://replyrep.io/pricing).

*Comment to DM by plan*

|  | Free | Lite | Boost | MAX |
| --- | --- | --- | --- | --- |
| Price | $0 | $10/mo | $25/mo | $100/mo |
| Automated DMs a month | 2,000 | 10,000 | 40,000 | 400,000 |
| Post, Reel & Story automation | Included | Included | Included | Included |
| Comment Auto Reply | Not included | Included | Included | Included |
| Follow-Gated DMs | Not included | Included | Included | Included |
| Email Collector | Not included | Included | Included | Included |

## What limits and rules are worth knowing?

- **It only messages people who commented.** Comment to DM is a reply to someone who asked, which is the difference between automation and spam.
- **Meta caps how fast any tool can send.** On a post that takes off, sends can outrun that limit. On paid plans the [Excess DM Queue and SendBack](https://replyrep.io/features/viral-post-dm-queue) hold the overflow in order instead of dropping it.
- **One DM per matched comment counts against your monthly allowance.** Size your plan for your busiest month, not your average one.
- **It needs a professional account.** Meta's official API works with Business and Creator accounts, not personal ones.
- **Keyword choice matters.** A common word like "yes" will match comments that weren't asking for anything. See [the best Instagram comment keywords](https://replyrep.io/guides/best-instagram-comment-keywords).

For the platform side of this, read [Instagram private replies](https://replyrep.io/guides/instagram-private-replies) and [Instagram DM limits](https://replyrep.io/guides/instagram-dm-limits). For a sense of what comments can be worth: @ceramics.by.nadia (handmade ceramics, 231K followers) reports $1.2M in sales from comments.

## Frequently asked questions

### Is Instagram comment to DM allowed?

Yes, when it runs on Meta's official Instagram API and only messages people who commented first. ReplyRep is a Meta Business Partner on the official API and never asks for your password. Tools that log in with your password and imitate a person are a different thing and carry different risk.

### Does the commenter need to follow me to get the DM?

No. Anyone who comments the keyword gets the DM. If you want the link to cost a follow, switch on Follow-Gated DMs on a paid plan, and ReplyRep checks the follow before sending the link.

### Does comment to DM work on reels?

Yes. Post comments, reel comments and story replies all fire the same kind of automation. Reels are usually where it matters most, because that is where people who don't follow you yet are commenting.

### What happens to comments without the keyword?

Nothing. They are left alone, so normal conversation under your post carries on and nobody gets a DM they didn't ask for. You can reply to those by hand as usual.

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

Yes. Keywords on a single post are unlimited on every plan. If you want one keyword to work on every post you publish, use a Global Trigger instead, which has a per-account limit by plan.

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