Winning a customer ends at the payment. What they feel next decides whether they come back. That run of moments, from the box arriving to the day they cancel, is the customer experience (CX): the sum of a customer's interactions with an organisation and how they feel about them.

Map the stages. List what happens after the purchase, in order:

• delivery or access: does it arrive when and how they were told?
• first use: can they get started without help?
• service: what happens when they have a question?
• problems: how are mistakes put right?
• changing or leaving: can they pause, switch or cancel without a fight?

Find the pain points. A pain point is a moment that causes frustration, effort or doubt. You find them by listening, not guessing: the reasons customers give for leaving, complaints and reviews, questions to your service team, and watching one customer try something while you stay quiet. You did this kind of listening in the customer research topic, and the reasons people give for leaving are the best map you'll get.

Moments that matter. Not every stage weighs the same. People remember the first use, the moment something went wrong and the way out. Fix those first.

Ethics. A customer should be able to leave as easily as they joined. Making cancellation hard keeps customers who resent you, and the regulation topic showed it can break consumer law too.

UK example: Club Pret. Pret A Manger launched a coffee subscription in September 2020 at £20 a month for up to five barista-made drinks a day, as ITV reported on 4 September 2020. By 2024 the subscription was called Club Pret and cost £30 a month. In July 2024, Restaurant Online reported that from 3 September 2024 Pret would replace it with a version giving 50% off up to five barista-made drinks a day, at an introductory £5 a month rising to £10 from 1 April 2025. On 11 February 2025, Restaurant Online reported that Pret had dropped the rise and would keep the price at £5. Pret's own Club Pret page, checked in November 2026, describes £5 a month for 50% off up to five hot or iced barista-made drinks a day, with the app used to claim, and says members can pause or cancel any time. Terms like these change often, so check the page before you quote it. The lesson isn't which price was right. A subscription's economics, what it costs to give each perk, and customers' reactions when the deal changes all shape how long people stay.

Customer relationship management (CRM) is the strategy, processes and systems an organisation uses to manage its relationships with customers. A CRM system is only the tool. The real work is deciding what to know, why, and what to do with it.

What data, and what you may use. List what your organisation holds about customers: contact details, what they bought and when, how they found you, and what they've said to your service team. Then check what you may do with each item. The regulation topic set the rules: use data for the purpose people were told about, collect only what you need, and respect consent and the soft opt-in. Not legal advice: the ICO is the regulator to check with. A customer record with no clear reason to hold it is a risk, not an asset.

Simple segments. You met segmentation in the customer topics and in email. For CRM, three questions about behaviour go a long way:

• Recency: how recently did they buy or engage?
• Frequency: how often?
• Value: how much have they spent, or contributed?

Someone who bought last week, often, with high value is a different customer from someone who bought once a year ago. Start with these three before anything cleverer.

Lifecycle messages. A lifecycle message is sent because of where someone is in their relationship with you, not because of a date in the marketing calendar. You built email sequences in the search, email and communities topic. Four lifecycle moments cover most organisations:

1. Welcome: after a first purchase, set expectations and help them get value.
2. First repeat: nudge a second purchase, which is when many customers decide whether to stay.
3. At risk: a customer whose behaviour is slipping, such as longer gaps or repeated skips, gets a helpful message, not a guilt trip.
4. Win-back: a lapsed customer is asked once, kindly, whether they want to return, and given an easy way to say no.

Each message needs a lawful basis to send, a single job and a way to stop. Say what the data showed, not what you assume about the person.

Customer lifetime value (CLV) is the contribution an organisation expects from a customer over the whole relationship. It tells you how much a customer is worth keeping, and so how much you can sensibly spend to win or keep one. Retention rate is the share of customers who stay over a period. Churn is its opposite: the share who leave.

Use contribution, not revenue. You met contribution margin in the routes to market topic: what is left from a sale after the costs that vary with it. Revenue overstates a customer's worth because it ignores the cost of the coffee, the packaging and the postage. A customer paying £17.00 a month who costs £9.00 to serve is worth £8.00 a month, and £8.00 is the number that pays for marketing.

The simple formula. For a subscription or any regular customer:

1. Expected lifetime in months = 1 ÷ monthly churn rate.
2. CLV = contribution per month × expected lifetime.

At 5% monthly churn the expected lifetime is 1 ÷ 0.05 = 20 months. That is an average: some customers leave in a month, some stay for years.

What it assumes. The formula is a simplification. It assumes churn stays steady month to month, that contribution per customer doesn't change, and that every customer is alike. Real churn is usually highest in the first months. Use CLV to compare options and to size a decision, not as a promise. Say what you assumed whenever you show it.

For a business with no subscription. If customers buy now and then, replace months with years: contribution per purchase × purchases per year × expected years as a customer. Label each as an estimate until you have data.

What a lower churn rate is worth. Small changes in churn have a large effect: expected lifetime is 1 ÷ churn, so each point off a low churn rate adds more months, and the gain applies to every customer. Work out CLV at the current churn and at the target, take the difference, and multiply by the number of customers. That gives the value of the retention change across the base.

Read the worked example first. It shows every step for Larkfield. Then try the Customer Lifetime Value and Retention Calculator with your own figures.

A loyalty scheme is a programme that rewards customers for repeat purchases or engagement. It isn't the same as real loyalty. A customer may collect points because the reward is good, while still switching the moment a competitor is cheaper. Real loyalty is a customer who chooses you again because the experience is good. A scheme can support that, but it can't replace it.

Rewards that fit the proposition. Ask what your customers value, and reward that. A discount trains customers to wait for it and cuts the contribution on every sale. Access, early information or recognition costs less. Compare each perk's cost with what it does to churn, which the Customer Lifetime Value and Retention Calculator lets you test.

Costs. A scheme costs the reward, the system, staff time and discounts given to people who would have bought anyway. Write down the cost and the effect you expect on CLV before you start.

UK example: Tesco Clubcard. Tesco launched Clubcard in the UK in February 1995 and has worked with the data analysis firm dunnhumby on it; accounts differ on who designed what, so check Tesco's and dunnhumby's own pages before quoting detail. The idea that made it influential was that a card links purchases to an individual customer, so a retailer can see what that customer buys over time instead of only what the till sold in total.

Ethics of loyalty pricing and data. Loyalty cards trade data for value, and the trade has to be fair. In its review of loyalty pricing in the groceries sector, published on 27 November 2024, the Competition and Markets Authority looked at about 50,000 products at Tesco, Sainsbury's, Waitrose, Co-op and Morrisons. It found 92% offered a genuine saving against the usual price, with average savings of 17% to 25% for members, and very little evidence that usual prices were inflated. Loyalty prices were not always the cheapest around, and some supermarkets could do more to help people without smartphones join. In its consumer survey, 43% thought it unfair that members pay lower prices for some products. It said it saw no evidence of consumer law concerns in how supermarkets collect and use data. Savings should be real, access fair and data use honest.

AI activity. Take 20 to 30 anonymised customer comments about your organisation: reviews, survey answers or service notes, with no names or contact details. Give them to an AI assistant and ask it to group them into themes and name each theme. Then check a sample of ten by hand against the themes. Record where the AI misread a comment, merged two different problems or missed sarcasm. Keep the themes you can defend.