One of the most persistent problems in marketing is simple to describe but difficult to solve: brand building drives growth, but it’s hard to measure.
Most marketing leaders know that upper-funnel activity such as streaming ads, video, and brand campaigns influence purchasing behavior later. The challenge has always been proving that relationship in a way that finance teams and boards trust.
According to Boston Consulting Group, 46% of B2C marketing leaders are trying to balance short-term revenue with long-term brand growth, yet only 53% say they are confident measuring the ROI of their total marketing investment.
That measurement gap shapes how budgets are allocated across the entire industry.
And often, it leads brands to optimize for the wrong outcomes.
The Retargeting Trap
When long-term brand impact cannot be measured clearly, marketing budgets tend to concentrate around tactics that generate immediate results.
That usually means:
- Retargeting campaigns
- Lower-funnel performance advertising
- Short attribution windows
These tactics absolutely have value. But they primarily reach shoppers who were already planning to purchase.
The result is a system that prioritizes harvesting existing demand instead of creating new demand.
At WBX, we see this dynamic frequently when brands first begin scaling on Amazon. Many arrive with strategies heavily weighted toward bottom-funnel activity because that is what traditional measurement systems reward.
But sustainable growth requires something different.
It requires understanding the entire customer journey, not just the final click.
Amazon’s Attempt to Close the Measurement Gap
Amazon Ads is introducing a metric designed to address this challenge called Long-Term Sales (LTS).
LTS attempts to measure the full value of advertising by incorporating signals that indicate future purchase behavior, not just immediate conversions.
Those signals include actions such as:
- Brand searches
- Product detail page views
- Add-to-cart activity
- New-to-brand engagement
Amazon uses its authenticated identity graph and historical shopper data to estimate the long-term value associated with those early actions.
In practice, the model attempts to answer a question marketers have struggled with for years: Which marketing touchpoints actually drive future purchases?
Why This Matters
Customer journeys today are highly non-linear.
A typical purchase path might include:
- A streaming TV ad
- A product search days later
- Several product page visits
- A purchase weeks after the first exposure
Traditional attribution models struggle to connect those moments.
Amazon is in a unique position because it sits at the intersection of media exposure, shopping activity, and actual transactions.
That allows Amazon to connect signals across the journey in ways most platforms cannot.
A Real Example of the Measurement Problem
Amazon shared a case study involving a consumer packaged goods brand that was investing in consideration campaigns designed to attract new category shoppers.
Under traditional measurement:
- These campaigns delivered 34% lower ROAS than direct purchase campaigns.
Based on that data alone, many organizations would shift budget away from awareness and consideration.
But when the same campaigns were evaluated using Long-Term Sales, the results changed dramatically.
When long-term effects were included:
- Sales impact increased 70%
- 51% of the incremental value came from new-to-brand shoppers
- ROAS improved to 1.7x higher than the standard 14-day window showed
Without that expanded measurement, the brand might have cut a strategy that was actually driving growth.
The WBX View: Measurement Drives Strategy
At WBX, we believe measurement is not just a reporting exercise. It directly shapes marketing strategy.
When brands rely solely on short attribution windows, they systematically undervalue:
- Streaming video
- Upper-funnel display
- Brand storytelling
- New-to-brand acquisition
Those activities often appear inefficient in the short term but are critical for long-term category leadership.
One of the most important shifts we are seeing among sophisticated Amazon advertisers is a move toward full-funnel performance thinking.
Instead of asking:
“Did this campaign drive immediate sales?”
The better question becomes:
“Did this campaign move customers closer to becoming buyers?”
Tools like Amazon Marketing Cloud and emerging metrics such as Long-Term Sales are helping brands answer that question with greater confidence.
The Future of Advertising Measurement
The broader industry trend is clear.
Advertising measurement is evolving from:
Last-touch attribution → Customer journey measurement
The brands that adapt to this shift will make better budget decisions and build stronger long-term growth engines.
At WBX, our role is helping brands navigate that transition by connecting:
- Upper-funnel media strategy
- Retail media performance
- Customer journey measurement
Because when marketers can see the entire journey, they stop optimizing for the last click and start optimizing for growth.
And that is where real brand value is created.