Audience Segmentation for Profit, Not Just Reach

The Audience Problem

Traditional audience targeting groups people by who they are - demographics, interests, affinity categories. Profitable targeting groups people by what they're worth - AOV, return rate, LTV, and repeat purchase probability.

The demographic segments Google provides are free because they're blunt. The segments that drive profit require your first-party data - and the willingness to use it. This data is also what separates genuine acquisition from repeat customer spend.

Profit-Based Segments

• • High-AOV purchasers: Customers with average order values 50%+ above the mean - these directly impact AOV-driven ad spend optimisation
• • Low-return customers: Segments with return rates below 10% (compared to category average)
• • Repeat purchasers: 2+ orders in 12 months - proven LTV
• • Email engaged: Active email subscribers who click and purchase through email
• • Full-price buyers: Customers who purchase without discount codes - avoiding the discount treadmill

High-Value Audiences

Upload your top 20% of customers by LTV as a customer match list. Use this as an audience signal in PMax and as a bid modifier in Search/Shopping. These customers deserve higher bids because they're worth more.

Build lookalike audiences from your best customers, not from all converters. A lookalike based on high-LTV customers will find better prospects than one based on everyone who ever bought something.

Exclusion Strategy

Exclusion is as valuable as targeting. Exclude serial returners from acquisition campaigns. Exclude recent purchasers of one-time products (mattresses, large appliances). Exclude customers who only buy during deep discounts.

Each exclusion improves your effective CPA by removing low-value clicks from the pool. It's budget reallocation without touching a bid.

Implementation

This requires CRM data in Google Ads. Monthly customer list uploads segmented by value tier. Automated if possible through your ecommerce platform's integration.

Start with two segments: top 20% by LTV (bid up) and bottom 20% by contribution margin (exclude or bid down). Even this basic segmentation typically improves blended CPA by 10-20%. Make sure you're not consolidating campaigns in a way that removes this visibility.

Next Steps