2.1 Intro to SmartLists

Discover how to build and manage dynamic lead lists that auto-update based on intent signals. Understand what SmartLists are, how they work, and why they’re core to automated outreach.

Written By François Delporte

Last updated 11 months ago

What’s a SmartList?

A SmartList is a dynamic list of leads that auto-updates based on real-time intent signals.
Unlike static CSVs or manual scraping, SmartLists evolve as your audience interacts across LinkedIn, your product, or your marketing stack.

These intent signals can come from:

  • 🟦 LinkedIn (likes, comments, searches)

  • 📩 Signup forms or tools like Tally, Stripe, Cal.com

  • 🔌 Your own product or CRM via API

You define the trigger. ReactIn keeps the list updated — no maintenance needed.

Why It Matters

You can stop wasting time:

  • Downloading CSVs from tools like Sales Navigator or a competitor's LinkedIn post, or even the last attendees from your Webinar

  • Manually filtering based on outdated criteria

  • Restarting campaigns every time something changes

SmartLists let you:

✅ Auto-collect new prospects
✅ Enrich them with AI + LinkedIn data
✅ Segment in real time based on job title, company size, industry, etc.
✅ Push leads straight into live LinkedIn campaigns

In short: your pipeline stays fresh, relevant, and tailored to your ICP — 24/7.

Business Example

Let’s say you run a webinar on “Scaling Sales with AI”.
Instead of exporting leads once and moving on, you could:

  • Auto-add everyone who commented on your post

  • Enrich with their job title + company

  • Segment: send a full message to RevOps leads, and just a connection request to others

  • Keep the list growing as new people engage

All inside one SmartList.

💡 Pro tip: Start with one template like The LinkedIn Pixel or Spyer, and connect it to a campaign immediately. That’s how you get your first leads in minutes.

Ready to move on?
👉 Next: 2.2 One-Shot Scrapers →