The biggest irony in modern business?
SaaS made data easier to track but harder to unify.
The success of SaaS gave every team better tools, but it also created one of the biggest growth blockers today:
Data silos.
Every team now has its own dashboards, its own KPIs, and its own version of the truth.
🚀 Marketing sees a winning campaign.
💰 Finance sees a broken P&L.
🧠 CEO just wants a straight answer.
I’ve heard this conversation too many times:
CMO: Our growth channels are scaling efficiently.
CFO: Then why doesn’t the P&L reflect that?
CEO: Are we going to hit our goals?
This disconnect is one of the biggest blockers to sustainable growth.
Here’s why it keeps happening:
No Strategic Alignment
→ Not aligned on the real levers of growth
→ Unclear on short-term vs. long-term targets
→ CMOs often unaware of financial constraints
Same KPIs, Different Language
→ ROI means one thing to marketing, another to finance
→ The CFO looks at transactional views while the CMO cares about cohort views
→ Different definitions lead to different conclusions
Different Systems, Different Numbers
→ Each team pulls from its own source of truth
→ Same KPI, different value
→ No one trusts what they didn’t build
It’s not easy to fix the language barrier between CFO and CMO, but it’s doable.
Start with alignment, not attribution:
✔ Sync Growth & P&L
→ Reconcile both teams’ data sources on Investment, New Customers and Revenue so you start from the same numbers.
→ Stick to blended and marginal costs. Don’t break it down by channel.
✔ Standardize Key Metrics
→ Agree on the definitions of the KPIs you both want to look at
→ Use one source of truth across both teams
✔ Spend Most of Each Meeting on Strategy, Not Data
→ Focus on growth levers, goals, and constraints
→ Data should support the conversation, not derail it
David Manela
David Manela is the founder of Exactius and creator of the Growth Operating System — a framework for deploying capital-efficient, compounding growth inside scaling companies.
FAQ
Frequently asked
Why do my finance and marketing numbers never agree?
Usually because the two teams define and source the same KPIs differently. This article names three causes: no shared view of the real growth levers, the same KPI meaning different things to each team, and separate systems that produce different values for the same metric. Finance often reads transactional results while marketing reads cohorts, so both teams can be accurate and still disagree.
How should CAC be defined so marketing and finance agree?
Write one formula down and use it everywhere. A common SaaS definition, from investor David Skok, divides total sales and marketing expenses for a period by the number of new customers acquired in that period. Andreessen Horowitz says a fully loaded CAC should include costs that are often left out, such as referral fees, credits and discounts. Agree in writing on which of these inputs both teams include.
What is the difference between blended CAC and paid CAC?
Blended CAC divides total acquisition cost by every new customer, including organic and referral. Paid CAC counts only paid channel spend and the customers it brought in. Andreessen Horowitz notes that many investors like to see both. This article recommends that marketing and finance align on blended and marginal costs instead of channel breakdowns, so the shared reference number is the blended one.
How much do companies spend on marketing as a share of revenue?
Gartner's 2026 CMO Spend Survey found that marketing budgets averaged 7.8% of company revenue in 2026, up from 7.7% in 2025. The survey covered 401 CMOs and marketing leaders in North America, the UK and Europe, and most respondents worked at companies with more than $1 billion in annual revenue. Smaller companies should read the figure as context, not as a target.
What should a shared KPI definition include?
The SEC's January 2020 guidance on key performance metrics in public company filings offers a useful standard. It calls for a clear definition and calculation method, an explanation of how management uses the metric, and disclosure of any change in methodology along with its effect on previously reported figures. Applying the same rules internally gives marketing and finance one documented version of each KPI.
How can marketing show finance what its spend actually caused?
Use a method that estimates incremental impact, meaning results that would not have happened without the spend. Marketing mix modeling estimates each channel's effect from aggregated spend and sales data. Google made Meridian, its open-source marketing mix model, available to all marketers in January 2025, and says it uses Bayesian causal inference to measure incremental impact. Controlled experiments such as geo tests are another option.
Related Reading
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