Most Kenyan businesses spend money on digital marketing and then wonder whether it is "working." Without a clear measurement framework, you are making decisions based on gut feel rather than data — and gut feel loses to data every time. This guide gives you the exact metrics to track, how to calculate them, and how to use them to make smarter decisions that compound your returns over time.
Why Most Businesses Do Not Measure Properly
The most common responses we hear when asking a client "how is your digital marketing performing?"
- "We're getting more likes and followers."
- "Our website traffic went up last month."
- "We've been running ads but I'm not sure if they're working."
None of these answers measure what actually matters: revenue generated relative to money spent. Likes and traffic are vanity metrics — they feel good but do not pay salaries. The metrics below are the ones that do.
The 6 Metrics That Actually Matter
1. Cost Per Lead (CPL)
Formula: Total marketing spend ÷ Number of leads generated
Example: You spend KES 30,000 on Google Ads and get 60 enquiries. CPL = KES 500 per lead.
This is your primary efficiency metric. Track it by channel — your CPL from Google Ads will be different from Facebook Ads and SEO. Over time, optimise toward your lowest CPL channels while maintaining lead quality.
2. Lead-to-Customer Conversion Rate
Formula: (Customers won ÷ Total leads) × 100
Example: 60 leads → 9 become clients. Conversion rate = 15%.
If your conversion rate is low, the problem may not be your marketing — it could be your sales process, pricing or offer. Track this monthly and investigate drops immediately.
3. Customer Acquisition Cost (CAC)
Formula: Total marketing + sales spend ÷ Number of new customers
Example: KES 80,000 total spend → 8 new customers. CAC = KES 10,000 per customer.
CAC tells you what it costs to win each new client. This must be significantly lower than your Customer Lifetime Value for marketing to be profitable.
4. Customer Lifetime Value (CLV)
Formula: Average purchase value × Purchase frequency per year × Average customer lifespan in years
Example: A client pays KES 25,000/month, stays for an average of 18 months. CLV = KES 450,000.
With a CLV of KES 450,000, a CAC of KES 10,000 is an extraordinary investment — a 45× return. Knowing your CLV transforms how you think about marketing spend. Most businesses dramatically underinvest in acquisition because they only think about the first transaction, not the lifetime value.
5. Return on Ad Spend (ROAS)
Formula: Revenue generated from ads ÷ Ad spend × 100
Example: You spend KES 20,000 on Facebook Ads and generate KES 80,000 in sales directly attributed to those ads. ROAS = 4× (or 400%).
For most businesses, a ROAS above 3× is profitable after accounting for margins. Below 2× is usually unprofitable. E-commerce businesses typically target 4–8× ROAS. Service businesses often achieve much higher ROAS because margins are higher.
6. Marketing ROI
Formula: (Revenue from marketing − Marketing spend) ÷ Marketing spend × 100
Example: Marketing spend KES 50,000 → Revenue attributed KES 300,000. ROI = (300,000 − 50,000) ÷ 50,000 × 100 = 500%
This is your ultimate number. A 500% ROI means every KES 1 you put into marketing returns KES 5. Track this quarterly and set targets for improvement.
Setting Up Your Measurement Infrastructure
You cannot track what you cannot see. Here is what you need:
- Google Analytics 4: Free. Tracks all website traffic, behaviour and goals. Install on every page of your website.
- Google Search Console: Free. Shows how your site performs in Google Search — impressions, clicks, rankings.
- Google Ads Conversion Tracking: Tracks which ads generate actual leads and sales. Non-negotiable if you run Google Ads.
- Meta Pixel: Tracks website visitors from Facebook and Instagram ads. Essential for retargeting and measuring Meta ad ROI.
- A CRM or simple spreadsheet: Track every lead — source, status, outcome, revenue. Even a Google Sheet works for small businesses.
Your Monthly Marketing Scorecard
Review these numbers on the first Monday of every month:
📊 Traffic: Total website sessions vs last month
📊 Leads: Total enquiries by channel
📊 CPL: Cost per lead by channel
📊 Conversion Rate: Leads → Customers
📊 CAC: Total spend ÷ New customers
📊 ROAS: Revenue from paid channels ÷ Paid spend
📊 Revenue attributed: Total revenue trackable to marketing activities
📊 Best performing content: Top 3 posts/pages by engagement and conversion
Using Data to Make Better Decisions
Numbers alone do not improve your marketing — the decisions you make based on them do. When reviewing your scorecard, ask:
- Which channel has the lowest CPL? → Increase budget here
- Which channel has the highest CPL? → Optimise or reduce
- Where are the most leads dropping out before converting? → Fix the bottleneck
- Which customer segment has the highest CLV? → Focus acquisition on this segment
- Which content drove the most leads? → Create more of this type
The businesses that grow fastest are not the ones that spend the most on marketing — they are the ones that measure most rigorously and act most decisively on what the data shows. Build your measurement infrastructure before you scale your spend, not after.
Ready to apply this to your business?
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