A campaign generates more enquiries while its cost per lead falls. The dashboard looks encouraging. But the sales team says those enquiries rarely turn into customers. Both observations can be true: the campaign has become better at generating form submissions, while the business outcome has weakened.
1. Follow the same group of leads.
Start with leads acquired during one defined period. Track their source, qualification status, sales outcome, and time to close. Keep that group together as it progresses. Comparing this week’s spend with this week’s sales can mislead you if those sales came from last month’s enquiries.
Agree on what “qualified” means before reviewing performance. For a service business, that might include an actual need, a suitable location, and a realistic buying timeline. Use the same definition across campaigns.
2. Compare the outcome, not only the entry cost.
Hypothetical example / Not client results
Campaign A spends ₹10,000, generates 100 leads, and produces two customers. Campaign B spends ₹10,000, generates 50 leads, and produces five customers.
A’s cost per lead is ₹100; B’s is ₹200. Yet A’s media cost per acquired customer is ₹5,000, versus ₹2,000 for B.
That last measure is media cost per acquired customer, not fully loaded customer acquisition cost. For CAC, define the acquisition expenses included—such as relevant sales and marketing costs—and divide by new customers acquired using a consistent method and period.
Even this comparison is incomplete without customer value. Check refunds, retention, and the margin each sale leaves. A lower acquisition cost alone does not establish that a campaign is profitable.
3. Make the next decision explicit.
- Many leads, few qualified: inspect targeting, the promise in the ad, and the form’s qualifying questions.
- Qualified leads, few conversations: inspect response ownership, contact details, and follow-up.
- Conversations, few customers: inspect offer fit, objections, and the sales handoff.
Check for tracking gaps and allow enough time for the sales cycle before shifting spend. A handful of outcomes is a reason to investigate, not a reliable verdict.
Take this into your next review: ask “Which leads became suitable customers, and why?” alongside “What did each lead cost?”
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