How to DM your guide link automatically when someone comments a word
Instagram lets your account answer a comment with one private message. Meta Business Suite can send it for you, tools like Manychat add more, and some creator tools have it built in.
“Comment GUIDE and I’ll send you the link” works because Instagram lets an account reply to a comment with a private message. A tool connected to your account watches for the word and sends the link for you, so nobody waits and you don’t type it 200 times.
How it works
Instagram calls these private replies. They work on comments under a professional (business or creator) account’s posts and reels. The rule every tool works within, from Meta’s own documentation:
One private message per comment, sent within 7 days of the comment. More messages only if the person replies, within 24 hours of their reply.
Your options
Meta Business Suite
Free and built in. Business Suite lists a Comment to message automation that replies to comments containing words you choose. It is set up on desktop, and third-party guides report a short delay before it sends and simpler keyword matching than dedicated tools.
Manychat
The largest Instagram DM automation tool by its own count, and a Meta Business Partner. Free (25 active contacts a month), Essential $17/month (250), Pro $39/month (2,500); less billed yearly. Past your plan’s contact limit, each extra contact is billed unless you set a cap, so a post that takes off can raise the bill. Manychat’s plans.
Other tools with free plans
CreatorFlow: Free (500 DMs a month), Pro $15/month. Inrō: Free (100 active contacts a month, 3 automations), Pro €12.99/month. Both include comment-to-DM on the free plan.
Built into a creator tool
If the link you’re sending is for something you sell, the tool you sell it with may already do this, so there’s nothing extra to set up or pay for.
Reelsinary
We make it, so weigh this accordingly. Each guide has a code word: followers comment it under your post and your own account DMs them the guide link, or they DM the word to @reelsinary. It’s built in and costs nothing extra.
Set it up in three steps
Short, easy to type, and tied to the post: the city or the guide’s name.
“Comment LISBON and I’ll DM you my guide.”
In Manychat, the “Post or Reel Comments” trigger with your keyword; in Business Suite, a Comment to message automation; in Reelsinary, the guide’s code word, set when you publish.
Common questions
Can I auto-DM a link when someone comments a keyword without Manychat?
Yes. Meta Business Suite lists a free Comment to message automation, and third-party tools such as Manychat, CreatorFlow and Inrō do it through Instagram’s official API. Some creator tools build it in, including Reelsinary, which sends your guide link when someone comments its code word.
How many messages can I send per comment?
Instagram allows one private message per comment, sent within 7 days of the comment. You can only message again if the person replies, and then within 24 hours of their reply.