Building Lookalike Audiences (LLAs)

🎯 Purpose

Leverage your best-performing Slopeside audiences to reach more of the right people with Meta’s Lookalike modeling.

💡 Why It Works

Because Slopeside’s audiences are already filtered for verified behavioral intent, they make ideal seed audiences for Meta’s Lookalike engine — improving match quality and predictability.

🪜 Step-by-Step Guide

In Meta Ads Manager, go to Audiences → Create Audience → Lookalike Audience.

Choose your top-performing Slopeside Audience as the source.

Select your region (start with the same country or region as your original campaign).

Choose audience size: start with 1%–4% to maintain precision.

Save and activate.

⚡

Pro Tip: Run your new LLA audience alongside your Slopeside audience — not as a replacement. This helps Meta learn faster while maintaining performance consistency.

📊 Expansion Framework

Range	Use Case	Strategy
0–1%	Closest match	Ideal for scaling initial trials
1–4%	Balanced reach	Use after 7–10 days of stable results
4–10%	Broad awareness	Use only once ROAS targets are met

🤖 AI-Powered Enhancement

The Slopeside platform monitors which Lookalike ranges deliver the strongest engagement and adjusts audience recommendations automatically. If a specific seed performs well, the system prioritizes it for future refreshes.

🧠

Ask the AI Assistant: “Which Lookalike range should I test next?” — It will analyze campaign history and suggest the optimal reach window.