2.1 Marketing to Customers

Why and how marketers collect customer data, segment markets, and build customer relationships.

What Marketing Is, and Why It Runs on Data

Marketing covers every activity a business uses to work out what its customers need, want, and struggle with, and then to promote, sell, and deliver something that answers those problems. Advertising is one slice of that work, not the whole of it. Reading local listings to see which bikes clear fastest is marketing, and so is pricing a finished bike, writing the listing, and handing it over with the seat already adjusted.

The reason marketing runs on customer data is that it has three decisions to make and no honest way to guess them: which customers to serve, which products to make, and how to reach those customers profitably. Data turns each of those from an opinion into a defensible choice, and the scale can be tiny. If the first line of a garage notebook is a cargo bike sold to a snack seller and the six under it are parents buying a safe first commuter bike for a middle schooler, the ledger has already named the buyer.

Essential knowledge: 2.1.A.1, 2.1.A.2

Demographic and Psychographic Data

Customer data arrives in two families, and the exam expects you to sort a description into the right one. Demographic characteristics are the measurable qualities describing a population: age and sex, race and ethnicity, income, and where people live. Psychographic characteristics are the cognitive and behavioral side of that same population, meaning interests, activities, values, and lifestyles.

Trued Cycles holds both without labeling either. The demographic picture is parents aged roughly thirty five to forty five, budgets around ninety dollars, living near the Saturday market. The psychographic picture is parents who rank safety above price and who respond to a thirty day tune up promise more than to a discount. The two families do different jobs: demographics decide where a listing is placed, psychographics decide what it says.

Essential knowledge: 2.1.A.3, 2.1.A.3.i, 2.1.A.3.ii

Where Customer Data Comes From

Businesses gather data through digital tools, traditional research tools, and purchase. The digital set is largest and least visible.

  • Subscriber lists record who asked to hear from the business, such as an order form taking a name and a number.
  • Online accounts store each customer's history, from past purchases to saved preferences.
  • Click tracking software records what a visitor taps, and tracking apps log where and when customers appear.
  • Social media monitoring reads what people say publicly about a product or a category.

Traditional tools sit beside those. A survey puts the same short questions to many customers at once, and an interview holds one longer conversation with a single customer. A one person business runs both informally: two fixed questions asked at every pickup yield survey style counts and interview style explanations in the same thirty seconds. Businesses also buy data outright from other businesses, which is why a parts retailer might pay an event organizer for a participant mailing list.

Essential knowledge: 2.1.A.4

Segmentation, Target Customers, and the Customer Profile

Market segmentation groups potential customers into market segments that share demographic and psychographic traits, so a business can see what each group needs instead of treating a market as one crowd.

SegmentPrice tierWhat the segment weighs most
Parents of younger children$60 kids' bikesWorking brakes at the lowest price
Parents of middle schoolers$95 commutersSafety, a test ride, and the guarantee
Adult hobbyists$150 road bikesThe parts list, and room to negotiate
Three segments, three price tiers

From its segments a business picks its target customers, the buyers whose wants and preferences already point at one specific product, which makes them likeliest to buy. Six of the first seven notebook sales sit in the middle segment, so the rebuild hours and the wording of every listing go there.

To aim at a person rather than a category, a business writes a customer profile: an invented description of a single sample buyer, assembled from demographic traits, psychographic traits, and what that individual wants and needs. Renee is forty one. She has ninety dollars, a Saturday deadline, and a middle schooler who needs a safe first commuter bike. Renee is invented, and every line on her card is supported by real buyers.

Narrowing the aim is cheaper, not merely tidier. Products, branding, pricing, and advertising built for one target population usually outperform an appeal to everyone at lower cost. Two listings that cost the same to post make the point: one offers used bikes in all sizes at good prices, the other offers inspected commuter bikes for middle schoolers with test rides and a tune up. The second answers Renee's worries in her order.

Essential knowledge: 2.1.B.1, 2.1.B.2, 2.1.B.3, 2.1.B.4

Customer Relationships, Acquisition Cost, and Lifetime Value

A sale is worth more when the customer relationship outlives it, so businesses use three standard tactics: personalized service that treats a buyer as a known individual, rewards for frequent buyers, and feedback opportunities such as satisfaction surveys. Social media and the internet make all three cheaper to run.

Two numbers justify the effort. Customer acquisition cost is the total marketing, advertising, and sales spending used to win customers, divided by the number of customers won.

\text{CAC}=\frac{\text{total marketing, advertising, and sales costs}}{\text{customers acquired}}

Twenty dollars of stall fees and flyers that bring in four buyers works out to five dollars per customer. Strong relationships push that number down, because a satisfied buyer who sends a referral delivers the next customer at no marketing cost.

Customer lifetime value runs the other way: the money one customer is expected to spend with the business over the whole relationship. Renee's first bike leaves thirty eight dollars of margin, two paid tune ups at twelve dollars each add twenty four, and a sibling bike worth sixty five dollars at a forty percent chance adds twenty six expected dollars. Eighty eight dollars of value against five dollars of cost is the business case for the free tune up and the sibling discount.

Essential knowledge: 2.1.C.1, 2.1.C.2, 2.1.C.3

What Collecting Customer Data Costs

Every tactic above runs on collected data, and collection creates exposure. Storing customers' searches, purchases, card numbers, posts, and locations can violate their privacy, and the violation is sharpest when people do not know the collection is happening or have never been told how the data may be used. Nineteen phone numbers in a notes app with no stated purpose is the same failure as a corporate database with no retention rule, only smaller.

Data that is not properly secured adds a second layer of risk. A data breach exposes stored information to outsiders. Identity theft uses stolen personal details to impersonate someone. Fraud takes money or property through deception, and stolen records are what make the deception convincing.

The business side is a balance. A firm that collects and uses customer data weighs the benefit against three costs it can genuinely lose: customers who leave when trust breaks, a violation of its own stated values, and lasting harm to its reputation. The repair is short: lock the device, delete every record with no purpose, and add one line to the order form stating what is kept and why.

Essential knowledge: 2.1.D.1, 2.1.D.2, 2.1.D.3

Worked examples

Customer acquisition cost for one month at the market

Compute customer acquisition cost from total marketing spending and customers won.

In his first month selling at the flea market, Theo spends twenty dollars in total: part stall fees and part photocopied flyers. Four buyers arrive because of that spending. Find his customer acquisition cost, then state what would happen to it if one of those four buyers later refers a fifth customer.

Stall fees and flyers, first month
$20
Customers acquired through that spending
4
Additional marketing spent on a referred customer
$0
  1. 1. Identify every marketing, advertising, and sales cost

    Customer acquisition cost uses total spending aimed at winning customers. Stall fees and flyers are both marketing costs, and together they are twenty dollars. Nothing else was spent on acquisition this month.

  2. 2. Count the customers that spending actually acquired

    Four buyers came in through the stall and the flyers. Buyers who arrived by another route would not belong in this denominator.

  3. 3. Divide total cost by customers acquired

    Twenty dollars divided by four customers gives five dollars per customer.

    \text{CAC}=\frac{\$20}{4}=\$5

  4. 4. Test what a referral does to the figure

    A referred customer costs nothing extra to acquire, so the numerator stays at twenty dollars while the denominator rises to five. Twenty divided by five is four dollars, which is why relationships that produce referrals push acquisition cost down.

    \frac{\$20}{5}=\$4

Answer
$5 per customer. Theo's customer acquisition cost is five dollars per customer. One referral would pull it down to four dollars without any new spending.

Why it matters
Acquisition cost is a ratio, so it moves for two different reasons: spending less, or acquiring more customers with the same spend. Relationship tactics work on the second, which is why the exam links customer relationships to lower acquisition cost rather than to lower advertising bills.

Lifetime value in margin for one customer

Build a customer lifetime value from repeat purchases and an expected future sale, then compare it to acquisition cost.

Renee buys one ninety five dollar commuter bike, which leaves Theo thirty eight dollars of margin. He expects the family to return for two paid tune ups over the years they own it, at twelve dollars of margin each. There is roughly a forty percent chance the family later buys a bike for a younger sibling, which would leave sixty five dollars of margin. Find Renee's lifetime value measured in margin, and compare it to the five dollar acquisition cost.

Margin on the first bike
$38
Margin per paid tune up
$12
Expected number of paid tune ups
2
Margin on a later sibling bike
$65
Probability of the sibling bike
40%
Customer acquisition cost
$5
  1. 1. Take the margin already earned

    The first bike is a completed sale, so its thirty eight dollars enters the total at full value with no adjustment.

  2. 2. Add the repeat purchases

    Two tune ups at twelve dollars of margin each add twenty four dollars. These are separate future purchases by the same customer, which is exactly what lifetime value is built to capture.

    2\times\$12=\$24

  3. 3. Weight the uncertain purchase by its probability

    The sibling bike is not certain, so it enters at its expected value rather than its full margin. Forty percent of sixty five dollars is twenty six dollars.

    0.40\times\$65=\$26

  4. 4. Add the three components

    Adding thirty eight, twenty four, and twenty six gives eighty eight dollars of lifetime value in margin terms.

    \$38+\$24+\$26=\$88

  5. 5. Compare value to the cost of acquiring it

    Eighty eight dollars of value against five dollars of acquisition cost is a ratio of about seventeen to one, which is the arithmetic that justifies spending on free tune ups and sibling discounts.

    \frac{\$88}{\$5}\approx 17.6

Answer
$88 in margin. Renee's lifetime value in margin is eighty eight dollars, against a five dollar cost to acquire her.

Why it matters
Keep value and cost in the same units. Lifetime value by the strict definition is everything the customer spends, which would be a larger number; measuring it in margin instead lets it sit beside acquisition cost, which is also a margin sized figure. State which version you used before you compare.

Key terms

8 common mistakes on 2.1

The wrong moves students actually make on these questions, why each one is wrong, and what to do instead. Part of the practice tier.

See what is included

Essential knowledge covered

2.1.A.1 · 2.1.A.2 · 2.1.A.3 · 2.1.A.3.i · 2.1.A.3.ii · 2.1.A.4 · 2.1.B.1 · 2.1.B.2 · 2.1.B.3 · 2.1.B.4 · 2.1.C.1 · 2.1.C.2 · 2.1.C.3 · 2.1.D.1 · 2.1.D.2 · 2.1.D.3