One of the first things I do in any engagement is look at how marketing is being measured. More often than not, the dashboards are full of impressions, clicks, open rates, and follower counts, and almost empty of the metrics that tell you whether marketing is actually making the business money. Fixing that is not cosmetic. The metrics you choose determine the decisions you make.

The principle: Measure marketing by its contribution to the P&L, not by its activity. Six commercial KPIs do almost all the work.

1. Customer Acquisition Cost (CAC)

What it costs, fully loaded, to acquire a customer. CAC is the foundation of marketing efficiency. If you do not know your CAC by channel and segment, you are allocating budget blind. The first 30 days is about establishing a trustworthy CAC baseline, even an imperfect one, so every spending decision has an anchor.

2. Customer Lifetime Value (LTV)

What a customer is worth over their lifetime. LTV is the other half of the equation, and it is what justifies acquisition spend. Without it, marketing optimizes for cheap customers instead of valuable ones, a costly mistake. Connecting LTV to acquisition is where real efficiency gains live.

3. LTV-to-CAC Ratio

The single clearest measure of whether your growth engine is healthy. A ratio around 3 to 1 is a common benchmark for a healthy business, below 1 to 1 you lose money on every customer; a very high ratio may mean you are underinvesting in growth. This is the number I want the CEO and board watching.

4. Payback Period

How long it takes to recover the cost of acquiring a customer. Payback matters enormously for cash flow and growth pace, especially for investor-backed companies. Two businesses can have the same LTV/CAC but very different payback periods, and that difference shapes how aggressively you can grow.

~3:1
a common healthy LTV-to-CAC benchmark
6
commercial KPIs that do most of the work
30 days
to a usable baseline and reporting framework

5. Marketing Contribution to Revenue and Pipeline

How much revenue (or qualified pipeline, in B2B) marketing is actually driving. This is the metric that earns marketing its seat at the table, because it speaks the language of the business. Establishing even a directional view of marketing-sourced and marketing-influenced revenue changes how the whole company sees the function.

6. Retention and Churn

Acquisition gets the attention, but retention is where durable value compounds. Churn quietly undermines every acquisition gain, and improving retention is often cheaper than acquiring more. A complete KPI set always includes a clear read on retention and churn, because growth without retention is a leaking bucket.

The Metrics to Retire

Impressions, reach, clicks, followers, and likes are not useless, they are diagnostics inside the funnel. But as headline measures of marketing success they actively mislead, because they reward activity over outcomes. One of the quiet wins of the first 30 days is moving these off the executive dashboard and putting commercial KPIs in their place. (More on this in Why Marketing Still Can't Prove Its ROI.)

Not sure your marketing metrics tell the truth?

We install commercial KPIs and reporting your CEO and board can trust.

Schedule a Discovery Call

The Bottom Line

The KPIs you choose are not an afterthought, they shape every decision marketing makes. In the first 30 days, a fractional CMO installs the six commercial metrics that connect marketing to the P&L, CAC, LTV, LTV/CAC, payback, contribution to revenue, and retention, and retires the vanity metrics that crowd them out. Measure the right things, and better decisions follow almost automatically.

Frequently Asked Questions

The marketing KPIs that matter most are the commercial ones: customer acquisition cost (CAC), customer lifetime value (LTV), the LTV-to-CAC ratio, payback period, marketing contribution to revenue and pipeline, and retention or churn. These connect marketing directly to the P&L. Volume metrics like impressions, clicks, and followers are diagnostic at best and should never be the headline measure of marketing performance.
A commonly cited healthy benchmark is an LTV-to-CAC ratio of about 3 to 1, meaning a customer is worth roughly three times what it costs to acquire them. Below 1 to 1 you are losing money on acquisition; a very high ratio can indicate you are underinvesting in growth. The right target depends on margins, payback period, and growth stage, but LTV/CAC is one of the clearest measures of marketing efficiency.
Vanity metrics are numbers that look impressive but do not connect to commercial outcomes, impressions, reach, clicks, followers, and likes in isolation. They can be useful as diagnostics within a funnel, but as headline measures of marketing success they mislead, because activity is not the same as revenue. A fractional CMO replaces vanity metrics with commercial KPIs as a first order of business.
A core KPI framework can usually be defined within the first 30 days of an engagement, even if the underlying data needs work. The first step is agreeing on the handful of commercial metrics that matter, establishing current baselines, and building the simplest reliable reporting. Perfect attribution can come later; a usable, trusted baseline is what unlocks better decisions immediately.
ZL
Zachary Leifer
Founder, State of Mind Strategies

Zachary Leifer is a senior commercial growth executive with 15+ years leading marketing at Fortune 500 companies including Las Vegas Sands and 1/ST Technology, where the discipline of connecting marketing to unit economics reduced acquisition cost by more than half. He holds an Advanced Management Program certificate from Harvard Business School and a B.S. from Cornell University.