How do I automatically send a DM when someone comments on my Instagram post?

Comment-to-DM automation works through Meta's Instagram API, which lets approved apps read comments and messages on business and creator accounts and send replies. You need an Instagram professional account linked to a Facebook Page, then you connect it to a tool that uses that API. The tool lets you set a rule: when a comment on a chosen post or Reel contains a keyword, reply publicly with a short line and send the commenter a private message.

This suits Pakistani accounts where every post gets the same 'price?' and 'details plz' comments. A boutique posting a new lawn collection can ask people to comment 'LAWN' and send each one the price list, sizes and a WhatsApp link. A course provider in Islamabad can send the brochure. It answers instantly at any hour, keeps prices out of public comments if you prefer, and starts a private conversation where the sale actually happens.

There are rules to respect. Meta allows automated replies to people who have interacted with you, generally within a window after their last message or comment, and expects a way for them to reach a person. Do not use tools that ask for your Instagram password instead of the official login, or that auto-follow, auto-like or mass-DM strangers; those break Instagram's terms and risk action against your account.

Keep the automated message short and useful: answer the question, give one next step such as a link or a WhatsApp chat, and make sure someone on your team watches the inbox for replies. An automation that sends details and then ignores the customer's follow-up question does more harm than a slow human reply.