Buying signal
LinkedIn posts: prospecting people who talk about your topic
When a decision-maker posts or comments on a topic close to your offer, they tell you what is on their mind, in their own words. This signal is warm but noisy: interest is not need.
Updated 2026-10-05
In short
A LinkedIn post becomes a buying signal when someone matching your persona posts or comments on keywords tied to your offer: it shows current interest, in their own words. The Sales Engine tracks these posts, checks that the author fits your target and uses the post to personalise the first message. Noisier than other signals, it needs tight tuning.
Why a post is a signal, and why to be careful with it
Someone who writes about a topic is thinking about it, at least this week. Their post gives a natural way in: you respond to an idea they expressed, rather than to information found about them.
But interest is not need. People comment out of curiosity, conviction or for visibility. That is why this signal is first a way to personalise and pick the moment, and why it is never recommended by default: switch it on when you know exactly which keywords matter.
Reading the signal and picking an angle
| What you see | What it often implies | Recommended angle | When to write |
|---|---|---|---|
| Their own post on your topic | A conviction or a project under way | Extend their idea with a point they did not cover | Within days |
| A comment on someone else’s post | Interest, weaker | The question raised in the thread | Within days |
| A post describing a problem | A current pain point | A concrete lead, without selling | Quickly |
| A post announcing a project | A workstream launched | What usually gets stuck at that stage | Quickly |
How The Sales Engine handles this signal
You choose the keywords
At least one keyword is required. Prefer precise phrases specific to your problem over generic terms.
You set the engagement type
Post author, comments or reactions, with a minimum engagement level and a window of 24 hours, a week or a month.
The author is checked
The person comes with the signal; their title is compared with your target. Off-persona, they are set aside and nothing is billed.
Check, approval, message
The profile is verified and scored; you approve; the post and matched keywords stay attached to the prospect, and the opener draws on them.
Mistakes to avoid
- Opening with "loved your post": everyone uses it, and it rings hollow.
- Picking keywords that are too broad: a common term brings back many profiles unrelated to your offer.
- Writing three weeks later: the window is counted in days. After that, quoting the post feels forced.
- Making it your only signal: pair it with need signals such as a new decision-maker or hiring.
Frequently asked questions
Is a LinkedIn post a real buying signal?
It signals interest more than need. It is excellent for personalising a message and choosing the moment, but noisier than company signals such as a funding round or a hire.
How soon after a post should I write?
Within days. The useful window is short: beyond a week or two, referring to the post loses its natural feel.
Can I track comments and reactions, not just posts?
Yes: you choose to track authors, comments or reactions, with a minimum engagement level.
Why is this signal not recommended by default?
Because it produces more noise than the others. Switch it on when you know the keywords that really set your topic apart, and tune it tightly.
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