tutorialinstagramsetup

How to Set Up Auto-DM on Instagram Comments (Step-by-Step Guide)

April 16, 2026By Reply in DM

Auto-DM (automatically sending a direct message when someone comments on your post) is one of the most effective ways to convert Instagram engagement into real business results. Here's how to set it up.

What is auto-DM?

Auto-DM means: someone comments on your Instagram post → they instantly receive a direct message from you with whatever you want to send (a link, discount code, PDF, or text message).

You've seen it in action when creators post "Comment LINK and I'll DM you the details." That's auto-DM.

Why use auto-DM?

•Capture interest at peak moment. When someone comments, they're engaged right now. A DM arrives while they still care.

•Scale your responses. Reply to hundreds of comments without manually sending a single DM.

•Build subscriber lists. Every commenter can become a subscriber you can message later.

•Higher open rates than email. Instagram DMs get 80-90% open rates vs. 20-30% for email.

Step-by-step setup with Reply in DM

Step 1: Create a free account

Go to replyindm.com and sign up with Google or email. No credit card needed.

Step 2: Connect your Instagram account

Click "Connect Account" in your dashboard. You'll go through Meta's official OAuth flow — the same secure login used by every major social media tool. Reply in DM only gets permission to listen for comments and send DMs.

Step 3: Create a post or pick an existing one

You can either:

•Create a new post directly in Reply in DM with media, captions, and scheduling

•Pick an existing post from your feed — Reply in DM will retroactively DM everyone who already commented

Step 4: Set your reply rules

Choose one of two rule types:

Catch-all: Every comment triggers a DM. Good for posts where you want everyone to get your link.

Keyword: Only comments containing specific words (like "LINK", "YES", "DEAL") trigger a DM. Good for targeted engagement.

Then write your DM message. You can include text, links, file attachments, and discount codes.

Step 5: Activate and you're done

Toggle the rule to active. From now on, every qualifying comment gets an instant DM. You can monitor activity, pause rules, and adjust messages from your dashboard.

Tips for better results

•Use a clear call-to-action. "Comment LINK to get the guide" is better than "let me know if you're interested."

•Keep the keyword short. One word (LINK, YES, DEAL, INFO) works best.

•Deliver real value in the DM. A specific link, code, or resource — not just "thanks for commenting."

•Add a subscribe option. Include a subscriber list opt-in so you can broadcast to these people later.

Is this allowed by Instagram?

Yes. Reply in DM uses Meta's official APIs. Auto-DM through official APIs is fully compliant with Instagram's platform policies. Your account stays safe.

What does it cost?

Reply in DM is free forever. Unlimited DMs, posts, and rules. The free plan adds a small Reply in DM footer link to DMs. The Pro plan ($9/month) removes it and adds DM automation: keyword auto-replies for incoming messages, an AI chat assistant, and a unified inbox.

Frequently asked questions

How do I set up auto-DM on Instagram?

Connect an Instagram Business or Creator account through Meta's official login, pick the post you want to automate, add a rule (catch-all, or a keyword like LINK), write the DM, and switch it on. The next qualifying comment gets an instant DM. The full flow is on the how it works page and takes about two minutes.

Do I need Meta Verified to send auto-DMs on Instagram?

No. The only account requirement is an Instagram Business or Creator account connected through Meta's official login — no paid verification is involved. Messages are delivered by Meta's official messaging API.

Is an auto-DM tool the same as an auto-commenter?

No, and the difference matters for your account. An auto-commenter posts comments on other people's posts by driving a logged-in session — unofficial bot activity Instagram detects and blocks (the Instazood review shows what that looks like in practice). Auto-DM replies to comments on your own posts through Meta's official API, which is allowed — more in is auto-DM allowed on Instagram?.

What's the best auto-DM tool for Instagram?

It depends on what you need beyond the DM itself. For comment-to-DM and nothing else, Reply in DM is free with unlimited DMs, contacts and rules. For full visual chatbot flows, ManyChat starts at $15/month and prices by contact count, and Chatfuel starts at $14.39/month after a 50-conversation trial. Side-by-side breakdowns: ManyChat alternatives and Chatfuel alternatives.

Can I auto-DM people who already commented on an older post?

Yes. Pick an existing post from your feed instead of creating a new one, and Reply in DM retroactively DMs everyone who already commented, then keeps DMing new commenters from that point on.