How to Build a Customer Loyalty Program That Encourages Repeat Purchases

A customer loyalty program rewards repeat business through points, stamps, membership benefits or other incentives. The commercial question is whether those rewards generate enough additional business to cover their cost.

A busy rewards scheme is not necessarily a profitable one. Customers might collect points on purchases they already intended to make. Design the program around a specific change in buying behaviour, then measure whether the change happens.

Decide What the Loyalty Program Should Change

Choose one primary objective before designing rewards. Encouraging a second purchase, shortening the gap between appointments and retaining regular customers are different goals. Each needs a suitable reward and observation period.

Identify the Customers and Buying Pattern

Review purchase records to establish how often customers return and where repeat business falls away. Separate first-time buyers, occasional customers and established regulars. Their reasons for returning or leaving deserve different treatment.

For a hypothetical salon, the objective might be increasing second bookings among first-time customers within eight weeks. For a coffee shop, the relevant behaviour might be another weekday visit. Set the timeframe around the normal purchasing cycle rather than choosing an arbitrary monthly target.

Ask customers what would make returning easier or more worthwhile. Include people who stopped buying where practical. A reward will not resolve every problem, especially if the underlying issue involves availability, service quality or convenience.

Define the Intended Benefits

Retention, purchase frequency, customer lifetime value and referrals are possible outcomes to test. Treat them as separate measures rather than assuming one improvement proves the others.

A customer spending more per visit while visiting less frequently presents a different result from a customer returning more often. Likewise, a referral needs a record connecting the introduction to a new customer. General satisfaction alone does not establish referral revenue.

Write a short decision rule for the pilot. Specify the desired behaviour, the customers included and the financial result needed to justify continuing.

Choose a Model Customers Understand

The program should fit the purchase pattern and be easy to explain during a normal transaction. Avoid adding tiers and exceptions before establishing whether the basic offer works.

Compare the Main Program Models

1. Visit or stamp-based rewards: Reward qualifying purchases or visits. Specify any minimum spend and the purchases eligible for a stamp. This gives staff and customers a straightforward rule to follow.
2. Spend-based points: Customers earn points according to eligible spending. State the earning rate and redemption value clearly. Check rounding, exclusions and treatment of discounted purchases.
3. Tiered benefits: Customers qualify for different benefits after meeting defined criteria. Explain how qualification works, how long status lasts and whether customers need to qualify again.
4. Paid membership: Customers pay for a defined package of benefits. Assess whether the ongoing value supports the fee and whether your business has the capacity to deliver every promised benefit.

Square’s current loyalty documentation illustrates visit-based, spending-based, item-based and category-based earning rules. The available structure depends on the software, so verify support for your intended rules before promising them publicly.

Make the First Reward Worth Reaching

Estimate how long a typical participating customer would take to earn a reward. Ten qualifying purchases mean a different wait for a daily coffee buyer and someone visiting a salon every two months.

Ask customers to explain the offer back to you during a small test. Confusion about earning, eligibility or redemption indicates a design problem. Improve the rule before writing longer instructions to explain the same complexity.

Benefits need not always involve a blanket discount. Assess whether an included service, product sample or early booking opportunity has value for customers and a manageable cost for the business.

Check the Cost Before Setting the Reward

Calculate the effect on contribution after product or service delivery costs. Include reward costs, software, staff administration and communication costs. Revenue growth alone gives an incomplete picture.

Work Through a Typical Customer Journey

For a hypothetical offer, suppose a customer earns €5 off after five eligible purchases of €20. At full redemption, the reward represents €5 against €100 of qualifying spending. This is a 5% face-value reward rate before other program costs.

The business still needs to assess product margins, redemption conditions and whether the reward changes purchasing. If every qualifying purchase would have happened anyway, the reward introduces a cost without demonstrating additional sales.

Test several realistic scenarios, including frequent redemption and customers choosing lower-margin items. Avoid relying on forgotten points to make the economics work. Keep a record of outstanding rewards and the resources needed to honour them.

Write Clear Earning and Redemption Rules

Explain eligible purchases, reward value, exclusions, expiry where applicable and whether rewards combine with other offers. Decide how cancellations, refunds and returned products affect balances.

Refund handling deserves a practical test. Square’s documentation, for example, describes different point adjustments according to the program and refund type. Check your own provider’s behaviour rather than assuming every returned purchase reverses points identically.

Give customers access to the rules before joining. Keep a dated internal copy so staff know which terms applied when a customer earned a benefit.

Set Up Technology, Communication and Staff Support

Choose technology around the agreed rules. A single-location stamp scheme and a program covering online and in-store purchases have different requirements.

Test the Complete Transaction

During a software trial, enrol a test customer, complete a qualifying purchase, issue a reward and redeem the benefit. Then test a refund, duplicate account and missing-points correction.

Check whether transactions from every relevant sales channel reach the same customer record. Ask about exports, permissions, support and the process for leaving the provider. Include required integrations and usage charges in the total cost.

Do not assume a customer relationship management system supplies all the necessary loyalty functions. Confirm which tool records purchases, calculates rewards and communicates the balance.

Personalise Messages Around Useful Information

A useful message explains the available benefit and the next step. For example, tell a customer which reward they have earned, where to redeem and any relevant deadline.

Use purchase information to improve relevance without making intrusive assumptions. A product recommendation should fit the recorded purchase and the customer’s stated preferences. Adding someone’s name to a generic promotion supplies little practical value.

Choose email, SMS or app notifications according to customer preferences and the channels your business manages reliably. Keep promotional preferences separate from the information needed to operate the account. Avoid repeating the same reminder across every channel.

Prepare Staff for Exceptions

Give staff a short explanation covering enrolment, earning and redemption. Practise common problems, including a forgotten card, an incorrect balance or a customer misunderstanding an exclusion.

Assign authority for corrections and a clear escalation route. A straightforward contact option and useful help page are often a better starting point than adding several support channels without enough staff to maintain them.

Record recurring problems during the pilot. Repeated manual fixes suggest a rule or integration needs attention before wider promotion.

Measure Behaviour and Profit During a Pilot

Run the first version with a manageable group and keep the rules stable long enough to observe the intended purchase cycle. Record the launch date and any changes affecting the comparison.

Track a Small Set of Defined Metrics

Measure enrolment and reward use as operating indicators. Pair those figures with repeat purchases, time to next purchase and contribution after program costs.

For a second-purchase objective, define a fixed group of new customers and give everyone the same observation window. For example, measure the share making another eligible purchase within eight weeks. Exclude customers without a full eight weeks of follow-up from the completed comparison.

Shopify’s customer cohort reporting groups customers by their first-order date and follows subsequent purchasing over time. Similar analysis in your own records helps avoid comparing long-established customers with recent arrivals.

Keep customer lifetime value estimates separate from realised spending. A short pilot does not establish a customer’s full future value. Document the assumptions behind projections and revisit them as purchase history develops.

Distinguish Participation from Additional Business

Members buying more than non-members does not by itself prove the program caused the difference. Existing regular customers have an obvious reason to join a rewards scheme.

Where practical, use a randomly selected comparison group during a phased invitation test. Otherwise compare similar customer groups and periods, while recording the limitations. Note price changes, seasonal demand and other promotions affecting purchasing.

Include Net Promoter Score if recommendation intent matters to the objective. The calculation subtracts the percentage scoring 0 to 6 from the percentage scoring 9 or 10 on a zero-to-ten recommendation question. Treat the score as survey evidence, alongside actual purchasing and referral records.

Use Feedback to Decide What to Change

Ask participants and inactive members specific questions about the reward, earning period and redemption process. Pair their responses with transaction records before deciding which change deserves a test.

If members earn rewards but rarely redeem, investigate awareness and restrictions. If redemption is high while contribution falls, review costs and whether the offer generates additional business.

Change one important element at a time, record the date and allow another suitable observation period. Explain changes affecting existing members clearly and plan how already-earned benefits will be honoured.