Conversion or Prospecting Strategy: The Value of Audiences Beyond the Conversion
Key takeaways
- Conversion captures existing demand; prospecting creates new demand.
- A 100% conversion strategy plateaus: finite demand, last-click bias, bidding drawn to existing customers.
- Audiences are worth more than the conversion: remarketing, audience signals, lookalikes, micro-conversions.
- The customer base carries lifetime value: acquisition valued over time, reactivation, loyalty.
- Secure conversion, build the base, then add prospecting in steps and measure its effect.
A conversion strategy captures demand that already exists: people searching for your product or brand, returning visitors. A prospecting strategy creates new demand: it introduces your offer to people who are not looking for it yet.
The first pays off immediately, the second prepares tomorrow’s sales. This article explains why a 100% conversion strategy eventually plateaus, what your audiences are worth beyond the conversion, and why the customer base is an account’s most valuable asset: to grow customer lifetime value (LTV), reactivate lapsed customers and build loyalty.
Two logics, two roles
| Conversion | Prospecting | |
|---|---|---|
| Goal | Capture existing demand | Create new demand |
| Targets | Brand and product searches, remarketing | Audiences similar to your customers, interests, new markets |
| Typical campaigns | Search, Shopping | Demand Gen, YouTube, generic Search |
| Profitability | Immediate | Deferred |
| Metrics | CPA, ROAS | New customers, brand searches, acquisition cost over time |
Why a 100% conversion strategy plateaus
- Existing demand is finite: once all brand and product searches are covered, more budget does not create more sales.
- The last click misleads: conversion campaigns harvest sales prepared elsewhere and look more profitable than they really are.
- Automation goes for the easy wins: without guidance, bidding favours people already close to buying, often your existing customers. That is why Google offers customer lifecycle goals such as new customer acquisition (About customer lifecycle goals, Google FAQ).
Conversely, a 100% prospecting strategy is expensive with no quick return. The balance is to secure conversion first, then invest gradually in prospecting, measuring its effect on new customers and brand searches.
The value of audiences, beyond the conversion
Every visitor, even without a purchase, leaves a signal. Used well, these signals are often worth more than today’s conversion:
- Your data segments: visitors, app users, buyers, reusable for remarketing and exclusions (About your data segments, Google FAQ).
- Audience signals: in Performance Max, your audiences steer the algorithm towards profiles close to your customers (Add audience signals, Google FAQ).
- Lookalike and custom segments: in Demand Gen they extend prospecting from your own lists (About Demand Gen campaigns, Google FAQ); more broadly, Google offers many segment types (About audience segments, Google FAQ).
- Micro-conversions: sign-ups, add-to-carts, downloads, tracked as secondary conversions, measure interest without skewing bidding (About primary and secondary conversion actions, Google FAQ).
A prospecting campaign should therefore also be judged on the audiences it builds, not only on its direct sales.
The customer base, the account's main asset
A customer is not worth their first purchase but all their purchases: customer lifetime value (LTV).
Example (illustrative figures): an €80 average basket, three purchases a year for three years, a 35% margin. Lifetime margin reaches 80 × 3 × 3 × 35% = €252, against €28 on the first order. A €60 acquisition cost looks ruinous on the first purchase; it is excellent over time.
Acquiring with lifetime value in mind
The new customer acquisition goal lets you bid more for new customers. Google advises setting the acquisition value so that, added to the first purchase, it represents what a new customer brings over their lifetime (Troubleshooting the new customer acquisition goal, Google FAQ).
Reactivating lapsed customers
Performance Max’s retention goal targets lapsed customers from a Customer Match list you define (for example, no purchase in six months) (About customer retention, Google FAQ). Reactivating a customer usually costs less than acquiring a new one.
Loyalty, upselling, exclusions
- Customer Match: customer lists you collected yourself, with consent, let you reach your customers on Google, YouTube and Gmail (About Customer Match, Google FAQ), within Google’s rules (Customer Match policy, Google FAQ).
- Upselling: offering a customer the complementary product or the higher range.
- Differentiated values: value rules can value some audiences more, for example high-value customers (About conversion value rules, Google FAQ).
- Exclusions: remove recent customers from prospecting campaigns so you don’t pay for them twice.
All this requires a clean, up-to-date customer base and data collected with consent. It is the foundation of any lasting growth strategy.
Splitting the budget between conversion and prospecting
- Secure conversion: brand, products, remarketing, with reliable tracking.
- Build the base: audiences, customer lists, accurate conversion values.
- Add prospecting in steps, with its own goals: new customers, acquisition cost over time.
- Measure the real effect: experiments, trends in brand searches and new customers.
For prospecting campaigns, see our Demand Gen guide; for their bidding, the table by campaign type.
Conclusion
Conversion pays the bills, prospecting prepares the future, and the customer base makes the difference over time. An account that only measures today’s conversion underestimates its audiences and overpays for existing customers. An account that knows its customers’ lifetime value can invest more, reactivate, retain and grow.
Want to build this strategy? Let’s talk.
Frequently asked questions
What is the difference between a conversion and a prospecting strategy?
Conversion captures existing demand (searches, remarketing); prospecting creates new demand among people not yet looking for your offer.
How do I account for customer lifetime value in Google Ads?
With the new customer acquisition goal, setting an acquisition value that, added to the first purchase, represents a customer’s lifetime value (Troubleshooting the new customer acquisition goal, Google FAQ).
Can I reactivate lapsed customers with Google Ads?
Yes: Performance Max’s retention goal targets lapsed customers from a Customer Match list (About customer retention, Google FAQ).
Updated 28 October 2026. Sources: Google’s official documentation, checked on that date.
About the author: Alain Vanhee is an independent paid search consultant based in Lille, France. He has managed Google Ads and Search Ads 360 accounts for more than fifteen years, with budgets from 1 to 20 million euros a year, in e-commerce and lead generation. Request an audit