Marketing measurement is evolving. Clients increasingly want to know what is working, what is not, and where their investment should go next. But many of the tools agencies have relied on, especially attribution platforms and channel-specific dashboards, are no longer fit for purpose.

Third-party cookies are disappearing. Privacy regulations are growing stricter. Customer Journeys are becoming more complex and less linear. It is harder than ever to connect marketing to real business outcomes.

This has left many agency leaders exposed. When CFOs ask for evidence to support media spend, platform metrics alone often do not hold up. That is where effective marketing mix modelling (MMM) comes into play. MMM provides a structured, data-led view of how different marketing activities and business variables contribute to results.

According to IAB Australia, more than 50 percent of marketers are now using MMM. However, nearly 60 percent say it fails to support in-flight decisions or inform week-to-week optimisation. In other words, MMM is being used, but often not effectively.

This whitepaper explores how forward-thinking agencies are operationalising MMM to close that gap.