You post a Reel. It starts getting comments — "Link?" "How much?" "Where do I buy this?" — and suddenly you're glued to your phone replying one by one. Instagram auto reply fixes this by sending a DM to anyone who comments a specific keyword, automatically delivering the link or info they asked for.
How Instagram Auto Reply Works
- You choose a keyword trigger (e.g., "LINK", "INFO", "PRICE")
- A follower comments that keyword on your post
- Instagram's API detects the comment and triggers your automation
- A DM is sent instantly with your pre-set message and link
- The follower gets exactly what they asked for — no friction
You post a recipe video and add to your caption: 'Comment RECIPE for the full ingredient list!' When someone comments 'RECIPE', PostLink auto-sends them a DM with the link to your blog post. Zero manual work.
Setting Up Auto Reply with PostLink
Step 1: Connect Your Instagram Account
Sign up for PostLink and connect your Instagram Business or Creator account. The setup takes about 60 seconds — just authorize the app through Instagram's official login flow.
Step 2: Create a Keyword Trigger
In your PostLink dashboard, create a new automation. Choose your trigger keyword — keep it simple and memorable. "LINK", "INFO", "GUIDE", or your product name all work well.
Step 3: Write Your DM Message
Craft the message that gets sent automatically. Include a friendly greeting, the link or info they requested, and a light call-to-action. Keep it conversational — it should feel like a real DM, not a bot.
Step 4: Activate and Promote
Turn on the automation and add the keyword to your post captions. Something like 'Comment LINK to get the free guide sent straight to your DMs!' works perfectly. The more visible the CTA, the more comments you'll get.
Best Practices for Auto Replies
- Use ALL CAPS for keywords so they stand out in captions
- Keep DM messages under 300 characters for maximum readability
- Include one clear link — don't overwhelm with options
- Personalize the message with the follower's name when possible
- Test your automation before going live with a big post
PostLink uses Instagram's official API — not scraping or unofficial methods. This means your automations are compliant and your account stays safe. Avoid spammy behavior like DMing people who didn't comment your keyword.
Ready to automate your Instagram replies? PostLink takes 60 seconds to set up.
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