Affiliate Programs: How They Work and How to Start One
Pay only for results sounds risk-free. The risks are real, they are just somewhere other than the budget.
CTFM Team
Affiliate marketing is pitched as the one channel with no downside. You only pay when you get a sale, so how can you lose?
You can lose, in four specific ways, none of which appear on the invoice. Here is how the channel actually works, whether you should run one, and what to check before you launch.
A partner sends you a visitor using a tracked link. A cookie or parameter records where they came from. If that visitor buys within a set window, the partner earns a commission. Software tracks it and handles payouts.
Three things in that description do the real work, and all three are where arguments start.
The attribution window
How long after the click a sale still counts. Thirty days is common. Longer windows are more generous to partners and more expensive for you.
The attribution rule
Last click is the norm, which means the partner closest to the purchase gets paid. It systematically over-rewards whoever appears at the final moment.
What counts as a conversion
A sale, a qualified lead, a signup. Define it precisely, including what happens on refunds and cancellations, or you will be arguing about it later.
Brand damage. Partners describe your product in ways you did not approve, to audiences you did not choose. Regulators generally hold the advertiser responsible for claims made on its behalf.
Paying for demand you already had. The classic version is coupon and cashback sites intercepting buyers who were already at your checkout. Last-click attribution hands them the commission for a sale you made yourself.
Bidding on your own brand. A partner buys ads on your company name, sits between you and someone searching for you, and charges you a commission on a customer who typed your name. Prohibit this explicitly.
Fraud. Fake leads, cookie stuffing, forced clicks. Programs of any size attract it, and it is invisible unless you look for it.
None of these are reasons to avoid the channel. They are reasons the "no risk" framing is wrong, and they all get managed the same way: with a written agreement and someone reading the reports.
Affiliate programs fit some businesses well and fight against others.
Works well when
Struggles when
Purchase decision is quick
Long sales cycle with several people involved
Margins can absorb a commission
Thin margins, where a commission erases profit
The product is easy to explain
Complex product needing a demo to understand
Established review and comparison content exists in your category
Nobody writes about your category
You can track a sale reliably
Purchases happen offline or over the phone
You have the volume to be worth a partner's time
Too small to be interesting to anyone
The last row is the one that catches new businesses. Partners choose where to spend their attention. A program with no traffic, no proof and a modest commission does not get chosen, no matter how well designed it is.
Work backwards from your margin, not from what competitors advertise.
Start with contribution margin per sale
What you keep after cost of goods, payment fees and delivery. This is the pot the commission comes out of, not revenue.
Decide what share you will give up
A partner-sourced sale is worth less to you than one you generated, but more than one you did not get. That gap is what you can afford.
Handle repeat purchases explicitly
First order only, or a share of everything the customer ever buys? Recurring commission attracts better partners and costs far more. Choose deliberately and write it down.
Set refund and cancellation rules
Commission reversed on refund, and a holding period before payout. Standard practice, and painful to introduce later.
Sanity check the worst case
If every sale next quarter came through affiliates, are you still profitable? If not, the rate is too high, regardless of what the category pays.
This is the part people skip, and it is the part that prevents every problem in the risks section.
No bidding on your brand name or misspellings of it. The single most valuable clause.
No claims beyond what your own marketing says. Especially anything about earnings, health or results.
Disclosure is mandatory. Advertising rules in most markets require affiliates to disclose paid relationships clearly. You are exposed when they do not.
No coupon codes you did not issue. "Discount code" pages that invent codes exist mainly to intercept your checkout.
No email spam and no incentivised clicks. Both damage you and neither is worth the sales.
You may terminate for breach without notice. Keep the ability to remove a partner quickly.
Disclosure is a legal issue, not a courtesy
Advertising and consumer protection regulators in several markets have taken action over undisclosed paid endorsements, and enforcement has generally landed on the brand as well as the promoter. Check the rules where your customers are, put the requirement in your agreement, and actually check that partners follow it. This is the part of affiliate marketing most likely to become a formal problem rather than an annoyance.
