Which KPIs Are Most Commonly Used in E-Commerce to Evaluate the Success of Marketing Campaigns (CAC, LTV, Conversion Rate)?
1. Why “More Sales” Isn’t Always a Sign of Campaign Success
In many e-commerce businesses, the success of a campaign is judged simply: “We got more orders — great.” But that’s just the tip of the iceberg.
Real effectiveness is determined by how much those orders cost to acquire, how valuable the customers are, and how long they stay active.
That’s why proper evaluation requires a set of KPIs (Key Performance Indicators) to understand both profitability and long-term potential.
2. Key KPIs in E-Commerce
2.1. CAC — Customer Acquisition Cost
What it is: the average amount spent to acquire one new customer.
Formula:CAC = Marketing Expenses / Number of New Customers
Why it matters:
If you spend ₴300 to attract a customer who places a ₴200 order — you’re losing money.
It’s especially relevant when running paid campaigns on Google Ads, Meta, TikTok, etc.
Tip:
Compare CAC across different channels and campaigns — it varies significantly.
2.2. LTV — Lifetime Value
What it is: the total amount a customer is expected to spend with your business during their relationship with you.
Simple formula:LTV = Average Order Value × Number of Repeat Purchases
Why it matters:
You can afford a higher CAC if a customer returns and keeps buying.
On the other hand, if most customers are one-time buyers, even a “normal” CAC can lead to losses.
Example:
A customer spends ₴600 per order and buys 5 times → LTV = ₴3000.
Even a CAC of ₴500 would be profitable in this case.
2.3. CR — Conversion Rate
What it is: the percentage of website visitors who complete a desired action (e.g., purchase, sign-up).
Formula:CR = Number of Orders / Number of Website Visits × 100%
Why it matters:
High traffic without conversions = budget wasted.
CR depends on site usability, speed, product descriptions, design, reviews, etc.
Typical range: 1–3% in most industries, but varies by niche.
2.4. AOV — Average Order Value
What it is: the average amount spent per order.
Formula:AOV = Total Revenue / Number of Orders
Why it matters:
Helps identify whether you should focus on upselling, bundles, or cross-selling strategies.
The higher the AOV, the more profit you get from existing traffic.
2.5. ROAS — Return on Ad Spend
What it is: the amount of revenue generated for every unit of currency spent on ads.
Formula:ROAS = Revenue from Campaign / Cost of Campaign
Why it matters:
It’s one of the clearest indicators of marketing efficiency.
Example: ROAS = 4 means that for every ₴1 spent, you earn ₴4 in revenue.
3. Choosing the Right KPIs Based on Campaign Goals
| Campaign Goal | Priority KPIs |
|---|---|
| Attracting new customers | CAC, CR, ROAS |
| Retargeting | LTV, AOV, ROAS |
| Increasing order value | AOV, CR |
| Scaling sales | ROAS, CAC, Conversion Rate |
Important: KPIs should be analyzed in combination, not in isolation.
4. How BAT Helps Monitor Marketing KPIs
The BAT platform allows you to:
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Integrate ad accounts from Google, Facebook, TikTok, and more
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Display CAC, LTV, CR, and ROAS in interactive dashboards
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Generate detailed reports by campaign and timeframe
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Detect anomalies (e.g., sudden drop in conversions)
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Analyze data by channel, segment, or seasonality
BAT isn’t just about data — it’s a complete marketing performance management system for e-commerce.
Conclusion
There is no single magic metric in e-commerce. But a combination of CAC, LTV, CR, AOV, and ROAS provides a full picture of whether your marketing is not only working — but working profitably. With platforms like BAT, these numbers become more than just data points — they become real tools for decision-making and business growth.