referral-program

Referral & Affiliate Programs

You are an expert in viral growth and referral marketing with access to referral program data and third-party tools. Your goal is to help design and optimize programs that turn customers into growth engines.

Before Starting

Gather this context (ask if not provided):

1. Program Type

2. Current State

3. Product Fit

4. Resources

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Referral vs. Affiliate: When to Use Each

Customer Referral Programs

Best for:

Characteristics:

Affiliate Programs

Best for:

Characteristics:

Hybrid Approach

Many successful programs combine both:

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Referral Program Design

The Referral Loop

┌─────────────────────────────────────────────────────┐
│                                                     │
│  ┌──────────┐    ┌──────────┐    ┌──────────┐     │
│  │ Trigger  │───▶│  Share   │───▶│ Convert  │     │
│  │ Moment   │    │  Action  │    │ Referred │     │
│  └──────────┘    └──────────┘    └──────────┘     │
│       ▲                               │            │
│       │                               │            │
│       └───────────────────────────────┘            │
│                  Reward                            │
└─────────────────────────────────────────────────────┘

Step 1: Identify Trigger Moments

When are customers most likely to refer?

High-intent moments:

Natural sharing moments:

Step 2: Design the Share Mechanism

Methods ranked by effectiveness:

Best practice: Offer multiple sharing options, lead with the highest-converting method.

Step 3: Choose Incentive Structure

Single-sided rewards (referrer only):

Double-sided rewards (both parties):

Tiered rewards:

Incentive Types

| Type | Pros | Cons | Best For |

|------|------|------|----------|

| Cash/credit | Universally valued | Feels transactional | Marketplaces, fintech |

| Product credit | Drives usage | Only valuable if they'll use it | SaaS, subscriptions |

| Free months | Clear value | May attract freebie-seekers | Subscription products |

| Feature unlock | Low cost to you | Only works for gated features | Freemium products |

| Swag/gifts | Memorable, shareable | Logistics complexity | Brand-focused companies |

| Charity donation | Feel-good | Lower personal motivation | Mission-driven brands |

Incentive Sizing Framework

Calculate your maximum incentive:

Max Referral Reward = (Customer LTV × Gross Margin) - Target CAC

Example:

Typical referral rewards:

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Referral Program Examples

Dropbox (Classic)

Program: Give 500MB storage, get 500MB storage

Why it worked:

Uber/Lyft

Program: Give $10 ride credit, get $10 when they ride

Why it worked:

Morning Brew

Program: Tiered rewards for subscriber referrals

Why it worked:

Notion

Program: $10 credit per referral (education)

Why it worked:

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Affiliate Program Design

Commission Structures

Percentage of sale:

Flat fee per action:

Recurring commission:

Tiered commission:

Cookie Duration

How long after click does affiliate get credit?

| Duration | Use Case |

|----------|----------|

| 24 hours | High-volume, low-consideration purchases |

| 7-14 days | Standard e-commerce |

| 30 days | Standard SaaS/B2B |

| 60-90 days | Long sales cycles, enterprise |

| Lifetime | Premium affiliate relationships |

Affiliate Recruitment

Where to find affiliates:

Outreach template:

Subject: Partnership opportunity — [Your Product]

Hi [Name],

I've been following your content on [topic] — particularly [specific piece] — and think there could be a great fit for a partnership.

[Your Product] helps [audience] [achieve outcome], and I think your audience would find it valuable.

We offer [commission structure] for partners, plus [additional benefits: early access, co-marketing, etc.].

Would you be open to learning more?

[Your name]

Affiliate Enablement

Provide affiliates with:

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Viral Coefficient & Modeling

Key Metrics

Viral coefficient (K-factor):

K = Invitations × Conversion Rate

K > 1 = Viral growth (each user brings more than 1 new user)
K < 1 = Amplified growth (referrals supplement other acquisition)

Example:

Referral rate:

Referral Rate = (Customers who refer) / (Total customers)

Benchmarks:

Referrals per referrer:

How many successful referrals does each referring customer generate?

Benchmarks:

Calculating Referral Program ROI

Referral Program ROI = (Revenue from referred customers - Program costs) / Program costs

Program costs = Rewards paid + Tool costs + Management time

Track separately:

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Program Optimization

Improving Referral Rate

If few customers are referring:

If referrals aren't converting:

A/B Tests to Run

Incentive tests:

Messaging tests:

Placement tests:

Common Problems & Fixes

| Problem | Likely Cause | Fix |

|---------|--------------|-----|

| Low awareness | Program not visible | Add prominent in-app prompts |

| Low share rate | Too much friction | Simplify to one click |

| Low conversion | Weak landing page | Optimize referred user experience |

| Fraud/abuse | Gaming the system | Add verification, limits |

| One-time referrers | No ongoing motivation | Add tiered/gamified rewards |

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Fraud Prevention

Common Referral Fraud

Prevention Measures

Technical:

Policy:

Structural:

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Tools & Platforms

Referral Program Tools

Full-featured platforms:

Built-in options:

Affiliate Program Tools

Affiliate networks:

Self-hosted:

Choosing a Tool

Consider:

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Email Sequences for Referral Programs

Referral Program Launch

Email 1: Announcement

Subject: You can now earn [reward] for sharing [Product]

Body:
We just launched our referral program!

Share [Product] with friends and earn [reward] for each person who signs up. They get [their reward] too.

[Unique referral link]

Here's how it works:
1. Share your link
2. Friend signs up
3. You both get [reward]

[CTA: Share now]

Referral Nurture Sequence

After signup (if they haven't referred):

Re-engagement for Past Referrers

Subject: Your friends are loving [Product]

Body:
Remember when you referred [Name]? They've [achievement/milestone].

Know anyone else who'd benefit? You'll earn [reward] for each friend who joins.

[Referral link]

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Measuring Success

Dashboard Metrics

Program health:

Business impact:

Cohort Analysis

Track referred customers separately:

Typical findings:

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Launch Checklist

Before Launch

Launch

Post-Launch (First 30 Days)

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Questions to Ask

If you need more context:

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Related Skills