E-commerce Marketing and GrowthAffiliate and creator programmes · Lesson 15 of 20

Designing an affiliate programme

Article · 11 min · 9 min lecture

Video lecture

Designing an affiliate programme

15 chapters · about 9 min · full transcript

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Chapter 1 of 15

Designing an affiliate programme

  • Pay only for sales — in theory
  • Types of affiliates
  • Commissions from contribution
  • Tracking, fraud and compliance

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Chapters

What affiliate marketing is

In an affiliate programme, partners (publishers, bloggers, review sites, creators, cashback and coupon sites, comparison sites) promote your products and earn a commission on sales they refer, tracked through links or codes. You pay mainly for results.

Types of affiliates

TypeValueWatch out for
Content and review sitesReach shoppers researching purchasesQuality and accuracy of content
Creators and influencersTrust and demonstrationDisclosure; audience fit
Comparison sitesHigh-intent shoppersPrice competition
Cashback and loyalty sitesConversion and repeat purchaseMay reward customers who would buy anyway
Coupon / voucher sitesConversion at checkoutOften intercept existing customers; low incrementality
Sub-networksScaleLess control over where you appear

Setting up a programme

  1. Platform: join an affiliate network (which provides tracking, payments and a publisher marketplace) or use in-house affiliate software integrated with your store.
  2. Commission structure: percentage of sale or fixed amount; consider different rates by product margin or affiliate type; bonuses for new customers.
  3. Cookie / attribution window: the period after a click during which a sale is credited (for example, 7 to 30 days). Longer windows attract partners but increase cost.
  4. Terms: allowed promotion methods, brand bidding rules (can affiliates bid on your brand name in search ads?), use of trademarks, coupon use, disclosure requirements, prohibited practices.
  5. Creative assets: product images, banners, brand guidelines, product feeds.
  6. Payment terms: validation period (to account for returns and cancellations) before paying commission.

Commission maths

Average order value: 120
Contribution margin before marketing: 45% -> 54 per order
Affiliate commission: 10% -> 12 per order
Network fee (if any): e.g. a percentage of commission

Contribution after affiliate cost: 54 - 12 - fees

Set commission levels so the programme remains profitable, and consider higher commissions for new customers (who are more valuable than existing customers who would buy anyway).

Fraud and low-quality traffic

Watch for:

  • Cookie stuffing: dropping affiliate cookies without genuine clicks.
  • Brand bidding against your terms.
  • Fake orders or self-referrals to earn commission.
  • Coupon code hijacking: codes intended for one partner appearing on coupon sites.
  • Toolbar or extension interception at checkout.

Controls: clear terms, monitoring conversion paths, validation periods, reversing commissions for returns and fraud, and removing violating affiliates.

Compliance

Affiliates must disclose their commercial relationship clearly (for example, "I earn a commission if you buy through this link"), in line with advertising rules such as the FTC's guidance in the US and ASA/CAP rules in the UK, and local requirements elsewhere. Your terms should require it, and you should monitor compliance — brands can be held responsible for misleading promotion by partners.

Worked example: a Gulf electronics retailer

The retailer launches an affiliate programme:

  • Content partners (tech review sites and YouTube creators): 6% commission, 30-day window, higher rate for new customers.
  • Cashback sites: 3% commission, only for new customers.
  • Coupon sites: limited to exclusive codes with lower commission; brand bidding prohibited.
  • Commission validated after the return window.

After three months, analysis shows content partners drive the highest share of new customers, while coupon sites mostly convert existing customers already in checkout. The retailer shifts budget toward content partners.

Networks, platforms and tracking in 2026

  • Networks and platforms: global options include Awin, Impact.com, CJ and Rakuten Advertising; in the Gulf, regional networks such as ArabClicks and global networks with MENA publishers are common; marketplaces run their own programmes (e.g. Amazon Associates, and affiliate programmes on noon and Daraz — check current availability). Shopify and WooCommerce also have affiliate apps for smaller in-house programmes.
  • Tracking: browser cookies are increasingly limited, so prefer server-to-server (postback/API) tracking or platform integrations, with codes as a backup. Agree the attribution window and what happens with returns and cancellations before launch.
  • Coupon codes: unique codes per partner help attribution offline and in chat-based sales (WhatsApp), but leak to coupon sites — see the measurement lesson.

Hands-on: set commissions from contribution, not revenue

def max_commission_rate(aov: float, gross_margin: float, variable_costs: float,
                        target_contribution_share: float = 0.5) -> float:
    """Highest commission (% of order value) that still leaves the target share of
    per-order contribution for the business."""
    contribution = aov * gross_margin - variable_costs
    if contribution <= 0:
        raise ValueError("Orders are not profitable before commission")
    return contribution * (1 - target_contribution_share) / aov

for category, aov, margin, costs in [("fashion", 220, 0.60, 35), ("electronics", 900, 0.18, 40)]:
    rate = max_commission_rate(aov, margin, costs)
    print(f"{category:12s} max commission ~{rate:.1%} of order value")

The same headline commission rate can be generous in one category and ruinous in another. Consider higher rates for new customers and lower (or zero) rates for existing customers or discount-code-only sites.

Compliance essentials

  • Affiliates must disclose the commercial relationship clearly (FTC Endorsement Guides in the US; ASA/CMA guidance in the UK; local rules in the Gulf and Pakistan). Put disclosure requirements in your terms and monitor them.
  • Ban brand bidding (bidding on your brand name in search ads) and trademark misuse unless explicitly allowed.
  • Prohibit cookie stuffing, incentivised clicks, fake reviews and misleading claims; reserve the right to reverse commissions for fraud and returns.

Common mistakes

  • Paying the same commission to all affiliate types regardless of incrementality.
  • No validation period for returns.
  • Allowing unrestricted brand bidding.
  • No monitoring of disclosure.
  • Recruiting affiliates without audience fit.

Recruiting good affiliates

Start with partners who already reach your customers: bloggers and reviewers in your category, creators who have mentioned your products organically, loyal customers with audiences, and complementary brands. Approach them with a clear value proposition — commission, exclusive products or early access, assets, and responsive support — and start with a small group you can manage well before opening the programme widely.

Affiliate programme checklist

Key takeaways

  • Affiliate programmes pay partners commission on referred sales.
  • Design commission, attribution windows, validation periods and terms deliberately.
  • Coupon and cashback affiliates may reward sales that would happen anyway.
  • Require and monitor disclosure; watch for fraud such as cookie stuffing and brand bidding.

Check your understanding

Quick questions to lock in the lesson. They don’t count towards your certificate.

  1. What is a validation period in an affiliate programme?
  2. Which affiliate type often has the lowest incrementality?
  3. What must affiliates do when promoting your products?
  4. Why should affiliate commission rates be set from contribution margin rather than as a flat % of revenue across all categories?

Put it into practice

Draft an affiliate programme outline: commission structure with margin maths, attribution window, validation period and five key terms.

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