
Most marketing dashboards are built around metrics that are easy to collect rather than meaningful to the business. Clicks, impressions and open rates tell you about activity, not impact. This creates a persistent problem for CMOs: marketing is working, but the numbers used to report on it don't reflect that. Marketing Mix Modelling addresses this directly by measuring the incremental contribution of each channel to actual business outcomes, independent of platform-reported data. The result is a clearer, more defensible picture of marketing's value, one that holds up in a boardroom conversation.
Clicks. Likes. Opens. Leads. These are the numbers marketers have been trained to chase because they're easy to get, easy to report on and easy to manipulate. But ask any CMO how much incremental revenue those clicks really drove, and the answer often comes with a shrug.The problem is rarely the marketing itself. More often, it's the metrics being used to evaluate it.
Marketing measurement has long been dominated by what Forrester calls 'vanity metrics'. They look good in a dashboard but say little about business impact. Think CTRs, impressions, open rates. According to the Data & Marketing Association (DMA), 41% of marketing metrics in use today fail to reflect actual effectiveness. They're easy to obtain, but hard to translate into outcomes that matter in the boardroom. And worse, they're incomplete. Vanity metrics tend to cover only digital activity, while many impactful marketing efforts happen in the offline world. When you only measure what's easy to track, you miss the bigger picture. The result? Many CMOs undersell marketing's true value. Budget requests are questioned. Strategies are misunderstood. Growth potential is left untapped.
The landscape has changed. Privacy regulation, rising CPAs and economic pressure mean there is no room for waste. Marketers must prove impact, not just activity. But the gap between what we can measure and what we should measure is holding many teams back. The shift required is from platform-attributed performance to independent, incrementality-based measurement and that starts with the right methodology.
Marketing Mix Modelling (MMM) is a proven methodology that helps quantify the true contribution of marketing to business performance. It answers the questions vanity metrics never will.
What MMM can do:
This level of clarity helps CMOs translate marketing outputs into commercial outcomes. For a broader overview of how MMM works and how platforms compare, see our guide to marketing mix modelling solutions.
Platform ROAS is inflated by default. It counts all conversions that happen after someone sees or clicks an ad, even if they would have converted anyway. Incremental ROAS strips out the noise and focuses only on revenue that was actually generated by marketing efforts. It is one of the most reliable ways to understand campaign efficiency and communicate marketing's impact to stakeholders. To understand how budget decisions connect to incremental outcomes, see our post on how to properly use ROAS to optimise your advertising budget.
To stay in control of their own budgets, CMOs need to move from vanity metrics to impact metrics. Here's what that shift can look like:

At Objective Platform, we help marketers cut through the noise and focus on what matters. Our MMM solution brings together your media, business and market data to show what is working, what is wasted and where to invest next.
If you are still steering spend based on CTRs, it may be time to rethink your measurement approach. Better measurement is not just a reporting upgrade, it is a more reliable basis for every budget decision you make. See how our clients are making the shift.
What are vanity metrics in marketing?
Vanity metrics are measurements that look impressive on a dashboard but have little connection to actual business outcomes. Common examples include total impressions, follower counts, click-through rates in isolation and email open rates. They are easy to collect and easy to report, but they rarely answer the question that matters most: did this marketing activity drive revenue?
What should CMOs measure instead of vanity metrics?
CMOs should focus on metrics that connect marketing activity to commercial outcomes, including incremental revenue, incremental ROAS, baseline vs. marketing-driven sales and contribution by channel. These require more sophisticated measurement approaches like Marketing Mix Modelling, but they produce insights that are genuinely useful for budget decisions and board-level reporting.
How does MMM help prove marketing's true value?
Marketing Mix Modelling analyses historical data across all channels to isolate the incremental contribution of each marketing activity to business outcomes. Unlike platform-reported metrics, MMM is independent of any individual platform's attribution logic and accounts for offline channels, seasonality and external factors, giving a more complete and reliable picture of marketing's impact.
How do you prove marketing's true value to the board?
The most effective approach is to shift reporting from activity metrics to outcome metrics. That means replacing CTR and impression data with incremental ROAS, revenue contribution by channel and comparisons of baseline vs. marketing-driven sales. MMM provides the underlying analysis that makes this kind of reporting credible and defensible.