What's Happening?
Juliette Potuznik, VP of sales at Billy Grace, an AI-powered marketing intelligence platform, has raised concerns about the reliability of Return on Advertising Spend (ROAS) as a metric in advertising. Potuznik argues that while ROAS is widely used to
evaluate campaign performance, it is inherently incomplete because it only reflects the data visible to individual advertising channels like Google and Meta. These platforms report conversions based on their own interactions with consumers, without accounting for the influence of other channels or the possibility that conversions might have occurred independently of the reported interactions. This limitation leads to a phenomenon known as 'double-counting,' where multiple platforms claim credit for the same conversion. Potuznik suggests that incrementality testing, which assesses whether conversions would have occurred without a specific campaign, offers a more accurate measure of advertising effectiveness.
Why It's Important?
The critique of ROAS highlights a significant issue in digital marketing: the potential for misallocation of advertising budgets based on incomplete data. As companies increasingly rely on digital advertising to drive sales, understanding the true impact of their marketing efforts is crucial. The current reliance on ROAS can lead to misguided decisions, such as over-investing in channels that appear to perform well on paper but do not contribute to actual business growth. This can result in wasted marketing spend and missed opportunities to invest in more effective strategies. By adopting incrementality testing, businesses can gain a clearer understanding of which campaigns genuinely drive new customer acquisition and revenue growth, leading to more informed and strategic marketing decisions.
What's Next?
As privacy regulations and the deprecation of third-party cookies make tracking consumer behavior more challenging, the need for more accurate measurement tools like incrementality testing is becoming urgent. Agencies and brands may need to shift their focus from traditional metrics like ROAS to more comprehensive approaches that consider the entire customer journey. This shift could lead to changes in how marketing budgets are allocated and how success is measured, potentially transforming the digital advertising landscape. Companies that adapt to these changes and embrace more holistic measurement techniques may gain a competitive advantage by optimizing their marketing strategies for true business outcomes.













