Learn how to track likes and comments on posts from specific LinkedIn profiles so you can spot engaged contacts, monitor thought leaders or competitors, and turn engagement into outreach opportunities.
By the end of this tutorial, you’ll know how to create a signal agent for Influencer engagement, choose what activity to track, narrow the audience you care about, exclude companies you don’t want to monitor when using All segments, and decide how signals should be processed in your workflow.
What’s updated for signal agents
Signals are now called signal agents, and the setup flow has been updated.
You now create and manage this workflow from Signal agents.
You can choose a daily identification limit for how many signals are identified per day.
When monitoring All segments, you can exclude companies by adding company LinkedIn page URLs and selecting company lists in the Exclusion list.
You can decide how signals should be handled: review manually, auto-create tasks, or auto-push to campaign.
Why this matters
This workflow is ideal when you want to identify people already interacting with content from industry voices, competitors, or influential profiles in your space. Instead of prospecting cold, you can focus on contacts who are already showing intent through likes and comments.
It’s especially useful if you monitor All segments and want to avoid getting signals from companies you already work with, such as existing customers, partners, or blocked accounts. With company list exclusions, your signal agent can stay focused on net-new opportunities instead of surfacing irrelevant signals.
It also gives you more control over execution, since you can decide whether identified signals should be reviewed manually, turned into tasks, or pushed automatically into a campaign.
Prerequisites
You should already have access to Signal agents in lemlist.
You should already know which LinkedIn profiles you want to monitor.
You should already have a plan for how to handle identified contacts, such as reviewing them manually, creating tasks, or pushing them into a campaign.
Core lesson — step-by-step workflow
Phase 1: Start a new signal agent
Go to Signal agents from the left sidebar, then click Create signal agent. This opens the setup flow where you’ll define what engagement to monitor and how to act on it.
In the signal selection step, expand Social activity, choose Influencer engagement, then continue. This signal is designed for tracking people who engage with content from specific LinkedIn profiles.
Phase 2: Configure the profiles and engagement you want to track
Enter an agent name, add the LinkedIn profile URLs you want to monitor one per line, then click Add profiles.
After your profiles are added, choose the type of engagement to track:
Likes on posts if you want broader engagement signals.
Comments on posts if you want stronger buying intent or more thoughtful engagement.
This choice defines how narrow or broad your signal agent will be.
Best practice: If you’re targeting warm outreach, start with Comments on posts. These signals usually indicate stronger interest than a simple like.
Phase 3: Choose which contacts to monitor
In Scope, choose whether to monitor All segments or refine the audience with Criteria. Use criteria when you only want engagement from a specific ICP instead of everyone interacting with the monitored profiles.
If needed, open Exclusion list to exclude companies from tracking. This is useful when you want to ignore existing customers, partners, blocked accounts, or other companies you don’t want included in results.
Set the maximum number of signals identified per day in Identification limit, then click Next. This helps you control how many new signals are surfaced daily.
Phase 4: Decide how signals should be processed
Choose how lemlist should handle identified signals:
Review signals manually if you want full control before taking action.
Auto-create tasks if your team works from a task queue.
Auto-push to campaign if you want immediate automation.
If you choose tasks, configure the task type, owner, fallback owner, priority, title, and instructions.
If you choose campaign automation, select the destination campaign and review the duplicate-handling options carefully so leads aren’t re-added where they shouldn’t be.
Note: Campaign processing settings apply at the campaign level. If multiple signal agents are linked to the same campaign, they can share these settings.
Practical application
Here’s one simple way to use this signal agent in a real workflow:
Monitor posts from 3 to 10 thought leaders, competitors, or recognized experts in your niche.
Track comments first if you want stronger engagement signals.
Filter the audience to your ICP using segment criteria and exclusions.
If you use All segments, exclude company lists such as Current Customers or Do Not Contact so reps only see actionable, net-new signals.
Automatically push matched contacts into a campaign or send them to a rep for manual review.
Example: A sales team selling to B2B SaaS companies could monitor posts from well-known GTM influencers and competitor founders, then only capture contacts from their target audience while excluding a Current Customers company list from the signal feed.
Troubleshooting & pitfalls
Issue: No signals appear right away
Root cause: New signal agents can take some time to start collecting data.
Fix:
Wait a few days for the first signals to populate.
Double-check that the monitored profiles are active on LinkedIn.
Make sure your audience filters are not too restrictive.
Issue: Too many irrelevant contacts are being captured
Root cause: The segment is too broad, or you selected a wide engagement type such as likes only.
Fix:
Add criteria like persona, location, industry, or company size.
Switch from Likes on posts to Comments on posts.
Use the Exclusion list to remove unwanted companies.
Issue: Expected profiles are not being added
Root cause: The LinkedIn URLs may be formatted incorrectly or not validated.
Fix:
Add one standard LinkedIn profile URL per line.
Use profile links in the format linkedin.com/in/....
Click Add profiles and confirm they appear as valid.
Remove broken or incomplete URLs and try again.
Issue: Leads are not entering the campaign as expected
Root cause: Signals processing is set to manual handling, task creation, or duplicate protections are blocking import.
Fix:
Open the signal agent and review the Signals processing settings.
Confirm the correct campaign is selected.
Check whether the option to avoid importing leads already in another campaign is preventing entry.
Issue: I need to exclude certain companies from broad monitoring
Root cause: Monitoring all segments can surface companies you don’t want to track.
Fix:
Use the Exclusion list to add company LinkedIn page URLs.
Select company lists you want to exclude from signal detection.
Review exclusions regularly to keep results focused on net-new opportunities.
Key takeaway
An Influencer engagement signal agent helps you find warm contacts based on real activity around profiles that matter to your market. When you combine the right monitored profiles, the right engagement type, focused segmentation, and the right processing method, you can turn public engagement into a highly relevant outbound motion while keeping signals centered on net-new opportunities.