Acquisition Growth

Building a referral programme from zero

Design, launch, and measure a referral system that turns your best customers into a consistent acquisition channel. Includes incentive structure guidance.

6 steps

80 min total

Growth

Track progress as you complete steps

Step 1 of 6

Identify your promoters

10 min

Referral programmes fail when they ask all customers to refer. Referral programmes succeed when they activate the small group of customers who are already enthusiastic. Start by identifying who those people are before you design anything.

Action items

Pull your NPS scores or customer satisfaction data if available

Promoters (NPS 9-10) are your referral candidates. Passives (7-8) require activation. Do not start with detractors.

If no NPS data exists, identify customers who: have been with you longest, use the product most frequently, or have already referred someone informally

Build a list of 20 to 50 promoter-tier customers to target in your launch

Check if any promoters have already referred customers without a formal programme

These people are your most likely early participants.

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Step 2 of 6

Choose your incentive structure

15 min

The incentive is the most important and most commonly misjudged element of a referral programme. Many businesses offer incentives that are too small to motivate action, or choose the wrong incentive type for their audience. The two fundamental decisions are: what you offer, and who receives it.

Single-sided (referrer only)

Simpler to run. Works when the referrer is highly motivated by the incentive alone. Common in B2B where referrers want cash or account credits.

Double-sided (referrer and referee)

Higher conversion rate for referee because they arrive with an immediate benefit. Costs more per acquisition but produces higher-quality referred customers.

Non-monetary incentives

Extended subscription, feature unlocks, exclusive access, recognition. Often more cost-effective and more brand-aligned than cash.

Action items

Decide: single-sided or double-sided?

Decide: monetary (cash, credit) or non-monetary (access, extension, status)?

Calculate your maximum viable incentive cost

Incentive cost must be meaningfully lower than your current CAC. If your CAC is 200, an incentive of 80 still saves you 120 per acquisition.

Define the incentive clearly: exact amount or benefit, trigger condition (trial start vs. paid conversion), and any caps

Step 3 of 6

Build the referral mechanics

25 min

The mechanics determine how easy it is to refer and how reliably referrals are tracked. Friction in the mechanics is the most common reason referral programmes underperform. Every additional step between the referrer deciding to share and their friend signing up reduces conversion.

Action items

Choose your referral tracking method

Unique referral link (easiest), referral code at signup, or email-based invite. Unique links are the most reliable.

Generate or set up unique referral links for your top 20 to 50 promoters

Build the landing page experience for referred visitors

They should arrive understanding: who referred them, what they will get, and what to do next. All in under 10 seconds.

Set up the fulfilment mechanism: how will the incentive be delivered automatically when the trigger condition is met?

Test the full flow end-to-end before launch: click link, sign up, trigger incentive, receive incentive

The friction test

Ask someone unfamiliar with your product to follow the referral flow and narrate what they find confusing. Every moment of confusion is a referral you will not get. Fix these before launch, not after.

Step 4 of 6

Create your activation campaign

15 min

The programme exists. Now you need to tell your promoters about it. The launch campaign is the highest-leverage moment in the programme's life: motivated early adopters will generate a disproportionate share of total referrals if activated correctly.

Action items

Write a personal email to your top 20 to 50 promoters announcing the programme

Personalisation matters. Name them, reference something specific about their use of your product, make them feel like insiders.

Include the referral link directly in the email. Do not make them log in to find it.

Set up an in-app prompt to surface the referral programme to active users during high-satisfaction moments

After completing a key action, after reaching a milestone, after receiving a positive outcome.

Add referral programme information to your post-purchase email sequence for all new customers going forward

Step 5 of 6

Set up tracking and establish baseline metrics

10 min

A referral programme without measurement is unmanageable. Define the metrics you will track from day one, establish baseline numbers, and set targets for your first 90 days.

Action items

Track: number of referrers (customers who shared their link at least once)

Track: referral conversion rate (referred visitors who become paying customers)

Track: referral CAC (total incentive cost divided by referred customers acquired)

Track: LTV of referred customers vs. non-referred customers

Referred customers typically have 20 to 30% higher LTV. Documenting this justifies higher incentive budgets.

Set a 90-day target for number of referred customers and referral programme CAC

Step 6 of 6

Launch, measure, and run your first iteration

5 min

Launch the programme. Then wait. Most founders make the mistake of declaring the programme a failure within the first two weeks. Referral behaviours take 30 to 60 days to establish and track through the full conversion cycle.

Action items

Send the launch email to your promoter list

Activate in-app prompts

Schedule your first review 30 days after launch

After 30 days: check referrer activation rate. If below 10%, the incentive or friction is the issue. If activation is fine but conversion is low, the referee landing experience needs work.

Playbook complete.

Run the Growth Audit again to see how your score has moved since you started this playbook.

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