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Comment-to-DM for Online Stores: Send Prices and Links Automatically

How small shops use one keyword per product to answer the price question at scale, what belongs in the DM, and the mistakes that cost sales.

October 21, 2026 · 4 min read · Liffio Team

The price question is the whole problem

If you sell anything on Instagram, you already know the comment. Price? How much? DM me. It arrives on every post, dozens of times, and each one is a person who has told you plainly that they are considering buying.

Answering them by hand works until it does not. A post that reaches well produces more of those comments in an evening than you can reply to between other jobs, and the ones you answer at noon the next day are answering someone whose moment has passed. Meanwhile the comment sits there publicly unanswered, which reads to the next reader as a shop that does not reply.

Comment-to-DM is the fix because it matches the shape of the problem exactly. The question is always the same, the answer is always the same, and the person asking has already raised their hand.

One keyword per product, not one keyword per shop

The instinct is to set up PRICE as a single trigger across everything. It works, but it wastes the opportunity, because then the DM has to be generic and you are back to a conversation.

Better: name the keyword after the product and put it in the caption and the video. SHIRT, HOODIE, SET01, whatever matches how you already refer to it. The DM can then carry the actual price, the actual link, and the actual sizes for that one item, which is an answer rather than an invitation to ask again.

Keep the words short and spellable on a phone. If the product has a name people mistype, use the shorter half of it. And say the word out loud in the Reel: people comment what they heard, not what is written in the caption they did not read.

What belongs in the DM

Three lines, in this order. Name the thing they asked about. Give the price. Give the link, on its own line or as a tappable button.

That is it. Resist adding the other four products, the shipping policy and a discount code, because a DM with one job gets acted on and a DM with five gets read and closed. If you sell variants, one short line asking which size is better than a list of all of them.

Turn on the public reply as well. Something as plain as sent you a DM with the price does two jobs: it tells that commenter to check their inbox, and it shows the next reader that this shop answers. Use reply variants so the comment section does not read as the same sentence forty times.

What this looks like in practice

A clothing shop posts a Reel of a new drop and says comment SET01 for the price. Someone does, and about twenty seconds later they have the price, the sizes in stock and a link straight to that product page, while the comment underneath the Reel says a DM is on its way.

The difference is not that the shop replied faster. It is that the shop replied to everyone, including the people who commented at one in the morning, and nobody had to decide which comments were worth the effort.

You can see three real accounts running this on the Liffio homepage, including a clothing store using it exactly this way.

Mistakes that cost sales

Promising a price and sending a sales pitch. People who asked for a number and got a paragraph block you, and they are the warmest audience you had.

Linking to the homepage instead of the product. Making someone search your catalogue after they told you which item they wanted is the opposite of helpful.

A link that breaks on mobile. Everyone who reads this DM is on a phone. Test it on a phone.

Not testing at all before promoting the post. Comment from a second account first and check three things: the DM lands, the link opens, and the public reply reads the way you meant it.

Letting the keyword outlive the product. When the item sells out, either update the DM to say so with an alternative, or turn the automation off. A DM confidently selling something you no longer have is worse than silence.

Frequently asked questions

Can I use a different keyword for every product?
Yes, and for a shop it is usually the better setup. Each automation watches one post for one keyword, so a keyword per product lets each DM carry that product's real price and link. How many you can run at once depends on the plan: 3 on Liffio's free plan, 25 on Starter, 100 on Growth, 250 on Business and Agency.
Should I put the price in the DM or just the link?
Put the price in. The reason the comment exists is that the price was not in the caption, so a DM containing only a link is asking them to go and find the thing they already asked you for. Price, then link, in that order.
What if someone replies to the automated DM?
Then you have a conversation, which is the point. The automation gets them the number; a person takes it from there. If the same follow-up questions keep arriving, a chatbot can handle the first round of them, which is a separate module from comment-to-DM.
Does this work on Reels as well as feed posts?
Yes, and Reels are usually where the volume is, because a Reel reaches people who do not follow you yet. The behaviour is the same on both.

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