Greet the person by name, thank them for commenting, give them exactly what the post promised (the link, code or guide) and end with one clear next step, such as replying with a question. Keep it short and friendly so it reads like a real message.
What are the best keywords for comment-to-DM?
Short, single words that match the offer, such as GUIDE, LINK, PRICE, CODE or BOOK. Put the keyword in the caption and on screen, and use a different word for each offer so you can see which one works.
How long can an Instagram auto DM be?
Postflow lets you write up to 1,000 characters per DM. Most good auto DMs are only two or three short lines with the link on its own line.
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