How to auto reply to Instagram comments with a DM

Instagram has no built-in setting that sends a DM when someone comments. You need a tool connected through Meta’s official Instagram API. Here is how comment-to-DM works, what you need before you start, and how to set it up so it actually gets read.

What comment-to-DM automation is

Comment-to-DM automation sends a private Instagram message to someone right after they comment a word you chose on your post or Reel. The caption says something like “comment GUIDE and I’ll send it to you”, the follower comments GUIDE, and the guide arrives in their DMs a few seconds later.

It works because it removes the hardest step on Instagram: getting someone from a post to a link. Captions can’t hold clickable links, and “link in bio” asks people to leave what they’re watching. A comment keeps them where they are.

Behind the scenes, the tool receives each new comment from Instagram, checks it for your keyword and sends a private reply through Meta’s API. A private reply is a DM linked to the comment, and it is the method Instagram provides for exactly this.

What you need before you start

  • An Instagram professional account, either Business or Creator. Personal accounts can’t connect to messaging tools.
  • Message access turned on in the Instagram app: Settings, then Messages and story replies, then Message controls, then Connected tools.
  • A tool that connects through Instagram’s official sign-in. You should never type your Instagram password into a third-party site.
  • A post or Reel with a clear call to action that names the keyword.
  • A second Instagram account to test with.

How to set up an auto reply to Instagram comments

These steps use Askenly, but the same order works in most comment-to-DM tools.

  1. Connect your Instagram account

    Sign up, choose Instagram and sign in on Instagram’s own screen. Approve the permissions it asks for.

  2. Choose what the DM should do

    Deliver a link, grow followers, collect an email or book an appointment. In Askenly each of these is a goal that sets up the steps for you.

  3. Pick the post and the keyword

    Choose the post or Reel, or every post. Use a short, unusual word people won’t type by accident, and add common variations.

  4. Write a short opening message

    One or two sentences and a button. People read the first line in their notification, so lead with what they asked for.

  5. Add the content

    Paste the link and give its button a clear label, such as Open the guide.

  6. Preview, switch on and test

    Comment the keyword from your second account and check the DM arrives, the button works and the link opens.

Instagram’s rules for automated DMs

Meta allows automated messages when the person reaches out first. A comment, a Story reply or a DM all count. Messaging people who never interacted with you is not allowed, and tools that do it rely on unofficial access that can get accounts restricted.

Each comment can receive one private reply. After that, the conversation continues when the person replies or taps a button. Further messages need to go out inside the 24-hour window that opens when the person messages you, and each new message from them restarts that window.

If someone doesn’t follow you, Instagram may place your DM in their Message Requests rather than their main inbox. A clear first line and a button make it more likely they open it.

Mistakes that stop comment DMs working

A keyword that’s too common

Words like YES or LOVE trigger on comments that weren’t asking for anything. Pick something specific.

A long first message

The notification shows only the start. Put the useful part first.

Forgetting variations

People type plurals and typos. Add GUIDES or a common misspelling as extra keywords.

No test from another account

Comments from your own account don’t start automations, so test from a second one.

Message access left off

Without Connected tools turned on in Instagram, DMs can’t be sent.

Two tools on one post

If two tools answer the same keyword, followers get two DMs.

What to send after the first DM

The first DM delivers what the post promised. What happens next is where comment-to-DM turns into a business result. You can ask for a follow before the link unlocks, ask for an email to send the guide and a follow-up, or offer open times for a call.

Keep follow-ups few and useful. Askenly allows up to two follow-up messages, sent only inside Instagram’s 24-hour window, and it hands the chat to you when someone asks a question.

Askenly plans for comment automations

Every plan includes comment, Story reply and DM keyword automations. Paid plans are $19, $39 or $77 a month.

Askenly plan limits
PlanPriceDMs a monthLive automationsInstagram accountsTeammates
FreeFree1,000311
Starter$19 a month12,0001031
Growth$39 a month75,0003082
Scale$77 a month1,000,000UnlimitedUnlimited10

Common questions

Can Instagram send a DM automatically when someone comments?

Not by itself. You need a tool connected through Meta’s Instagram API, such as Askenly.

Is it against Instagram’s rules?

No, as long as the tool uses the official API and only messages people who commented, replied or wrote to you first.

How fast does the DM arrive?

Usually within seconds of the comment.

Does it work on Reels and Stories?

Yes. Comments on posts and Reels, and replies to Stories, can all start an automation.

Do I need a Facebook Page?

No. Askenly connects with Instagram Login, which works with Business and Creator accounts without a Facebook Page.

Start free today

Connect Instagram and publish your first automation in a few minutes. No card needed.