How to set up Instagram comment-to-DM automation

When someone comments on your post or reel, Augst AI sends them a DM automatically. This walks through the whole setup — picking the post, choosing the trigger, building the reply, and what to check before you put money behind the post.

What comment-to-DM automation actually does

Someone comments on your reel. Instead of you seeing it hours later, a direct message lands in their inbox within a second — with the price, the link, the guide, whatever you promised in the caption. Optionally, a public reply is posted on the comment as well.

It is the most reliable way to turn engagement into conversations, because it catches people at the exact moment they raised their hand. The usual jobs it does:

  • Sending a price list, booking link or discount code
  • Delivering a free resource promised in the caption
  • Qualifying a lead before a human picks it up
  • Moving a public thread into a private conversation
On safety: Augst AI runs on the official Instagram Messaging API as a Meta partner. That is the distinction that matters — automating through the official API is permitted, while scripting a logged-in account or using a browser extension is not, regardless of how careful you are with the content.

Before you start

  • An Instagram professional account — Business or Creator
  • That account connected to Augst AI (free plan works)
  • A post or reel already published, or one you are about to publish

Part 1 — Create the automation

1

Click New automation

Top right of the Automations screen in your Augst AI dashboard.

The Augst AI Automations screen listing live comment-to-DM automations, with the New automation button in the top right
The Automations screen. Live automations are listed with the DMs each has sent and its open rate.
2

Choose "When someone comments on your Post/Reel"

This is the trigger. Picking it takes you to the Create Automation screen.

Automation type options, with When Someone comments on your Post/Reel listed first
Pick the first option. The others cover ads, story replies and custom workflows.

That screen is split. The left side is a live preview of the message as the recipient will see it. The right side is where you configure everything. Changes show up in the preview as you make them, so you are never guessing at the final result.

Part 2 — Configure it

1

Select the post

Pick a published post or reel, and only comments on it trigger the automation. Two other options sit at the front of the list: Next Post attaches it to the next thing you publish, which is what you want when the caption is written but the post is not up yet, and Any Post makes it a catch-all across your posts.

Select Channel set to Instagram, and the Select Post row showing Next Post, Any Post and recent posts
Channel first, then the post. Next Post and Any Post sit ahead of your published posts.
2

Select the trigger type

Keyword-based, or AI-based — the next section covers which to pick. There is also a Reply to Any comment toggle above it, which skips matching altogether and replies to every comment on the post.

Trigger Type panel with the Reply to Any comment toggle, Keyword and AI options, and a keyword entry box
Keyword is selected here. Type the word and press enter to add it.
3

Choose the reply type

Text for a simple message, Card for structured content, Image, or Carousel for several swipeable cards. The preview shows each one. Under the message box is Check Message Risk, which grades what you wrote before you save it.

Reply type selector showing Text, Card, Image and Carousel, with the message box and the Check Message Risk button
The message box caps at 1,000 characters. Check Message Risk sits underneath it.
4

Decide whether to reply to the comment

Enable it and a public reply is posted on the comment as well as the DM. Disable it and the conversation moves straight to private.

5

Save

The automation is live from that moment and runs in the background.

Set up your first automation free

Comment-to-DM is on the free plan. No card needed, and it runs on the official Instagram API.

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Keyword trigger or AI trigger?

This is the one choice that changes how the automation behaves day to day, and the right answer depends on your caption.

 KeywordAI
Fires whenThe comment contains the exact word you choseThe comment means what you are watching for
Best for"Comment PRICE and I'll send it" — you control the wordOpen questions you can't predict: "how much??", "cost?", "price pls"
MissesAnyone who phrases it differentlyRarely, but it is a judgement rather than a match

If your caption tells people exactly what to comment, use a keyword. If you are running a post that attracts genuine questions, use AI — listing every spelling of "how much" by hand is a losing game. You can read more on the comment-to-DM feature page.

How to auto-send a DM when someone comments on Instagram

That is the whole setup. Once saved, the auto reply runs on its own every time someone comments:

  • Someone comments on the selected post
  • The trigger condition is met — keyword matched, or AI judged it relevant
  • The DM is sent automatically
  • A public comment reply is posted, if you enabled it

Every person who comes through becomes a contact, so the conversation has a history attached the next time they message. That is what the Unibox and CRM are for.

Before you promote the post

Automation failures are rarely about the automation. They are about the message. A few things worth doing:

  • Test it yourself first. Comment on your own post from another account and watch the DM arrive.
  • Keep the first DM short. One idea, one link, one question. Long opening messages get ignored and ignored messages are a negative signal.
  • Check the message for risk. Income claims, shortened links and giveaway wording are what attract action blocks — and at automation volume, one risky message is sent hundreds of times. Use Check Message Risk under the message box, or the same Instagram ban risk checker on the web if you are drafting outside the app.
  • Watch the first hour. If replies come back that the automation can't handle, take over the conversation yourself — it steps aside and keeps the history.
The single most common mistake is promoting a post hard before testing the automation on it. A boosted post with a broken trigger spends budget sending people to silence.

Instagram comment-to-DM not working? Start here

When an automation stays silent, it is almost always one of these — in rough order of how often it is the cause.

  • You tested from the connected account. A comment from the same Instagram account the automation runs on is skipped on purpose, so you never DM yourself. Test from a second account.
  • Messaging access is off in Instagram. On the Instagram app: Settings and privacy → Messages and story replies → Connected tools, and turn on Allow access to messages. Without it, Meta delivers no comment events at all and nothing fires.
  • The account is personal. The Instagram Messaging API only works on a Business or Creator account. Switching is free and takes a minute in Instagram settings.
  • The keyword doesn't match. Keyword triggers look for your word in the comment. "Price?" works, "pricing" does not. If people are phrasing it their own way, switch that automation to the AI trigger.
  • The automation is on a different post. Each automation is tied to one post or reel. A new post needs its own.
  • The comment already got a reply. Meta allows one private reply per comment, so a comment that was already answered will not be sent a second DM.
  • The comment is too old. Meta refuses private replies to comments past a certain age, which is why automations added to an old post may not fire on the comments already sitting on it. New comments still work.

If none of those explain it, the conversation view shows what was received and what was sent for each comment, which usually makes the gap obvious.

Where to go next

Put this on your next post

Connect your Instagram account and build the automation in a few minutes. Free plan, no card needed.

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FAQ

Questions, answered

01Is Instagram comment-to-DM automation allowed?
Yes, through the official Instagram Messaging API, which is what Augst AI uses as a Meta partner. What is not permitted is automating a logged-in account with a script or browser extension. The route matters more than the fact of automating.
02Can I run it on more than one post?
Yes. Each automation is tied to the post you select, so you create one per post or reel you want it running on.
03Does it reply to the comment publicly as well?
Only if you enable it. There is a setting during configuration for whether to post a public reply alongside the DM — some campaigns want the public proof, others want the conversation private.
04What if someone replies to the DM?
The conversation lands in your inbox with the full history. You can let an agent handle it or take over yourself at any point.
05Do I need a paid plan?
No. Comment-to-DM automation is available on the free plan. See pricing for what the paid tiers add.
06Why is my Instagram comment-to-DM automation not working?
Most often it is one of three things: you commented from the same account the automation runs on, which is skipped so you never DM yourself; Allow access to messages is off under Settings and privacy → Messages and story replies → Connected tools in Instagram; or the account is personal rather than Business or Creator. After those, check that the keyword matches what people actually typed and that the automation is attached to the post being commented on.
07Can I auto-reply to comments on an old post?
You can attach an automation to an older post, but Meta refuses private replies to comments past a certain age, so the comments already sitting on it may not receive a DM. Comments made after the automation is live work normally.