Sales promotion examples: eight consumer mechanics, five trade ones, and what each costs you after the sale

Sales promotion is the short term incentive, and every mechanic carries a second price beyond the discount. Here is a worked example of each one, the arithmetic for how many extra units it has to sell, and the ones that change what a buyer expects to pay next time.

Published by AI Knows Us · Updated 19 October 2026

Sales promotion is the part of marketing that gives a buyer a reason to act now: a sample, a coupon, a price cut, a gift, a contest, a loyalty point, a cashback offer or a multibuy. Two audiences buy these incentives, and they are usually confused. Consumer promotions go to the person who uses the product. Trade promotions go to the wholesaler, retailer or distributor who stocks it. Each mechanic has a cost beyond the money given away, and that second cost is what decides whether running it again is a good idea.

The eight consumer mechanics, with a worked example of each

MechanicA worked exampleThe second cost
Free sampleA 10g sachet of a 200g coffee, handed out at a station or dropped into every order over a thresholdUnit cost plus handling, and a share of recipients who were never going to buy
Coupon or codeA one use code worth 15 per cent off a second order, emailed to customers who bought once and never returnedCodes leak to deal sites, so cap the uses and keep the window short
Straight price cutTen dollars off a forty dollar product for a ten day windowIt teaches the buyer what the product is worth, and the next full price looks expensive
Multibuy or bundleThree for the price of two, or a starter set priced below the sum of its partsIt pulls forward demand you already had, so the following month is quiet
Premium, a gift with purchaseA branded tote with any order over seventy five dollarsStock risk, because running out mid promotion is the worst outcome of the three
Loyalty points or a stamp cardTen visits, eleventh free, which is a discount paid later and only to repeat buyersA liability sitting on your books until it is redeemed or expires
Cashback or rebateTwenty dollars back by claim form after purchaseMost of the saving is never claimed, which is why it looks cheap and why it annoys the people who try
Contest or prize drawA monthly draw for a product bundle, entered by a formPrize cost plus the entrants who wanted the prize and not the product

Samples, which behave differently from every other mechanic

A sample gives away the product rather than the margin, so it is the only mechanic that proves the thing instead of discounting it. That makes it the right choice when the barrier is doubt and the wrong one when the barrier is price.

  • In pack or in order. A sachet of the new flavour inside the box of the old one. Cheapest route, and it reaches existing customers only.
  • In store or at a demo table. Tasting, trying or watching a demonstration, with a code on the card so the purchase can be traced back to the table.
  • Street and event. High volume, low qualification, and the one where staffing quality decides the result.
  • Direct to the door. Mailed or dropped to a selected set of addresses, which is the only sampling route you can target by geography before you spend.
  • Digital equivalents. A free tier, an extended trial, a sample chapter, a test file. Same logic, no unit cost, and the barrier moves from money to setup effort.

One number judges a sampling programme: the share of people who received a sample and then bought within a defined window. Record the window before you start, give every route its own code, and the comparison between routes is the finding worth having. Field sampling is usually bought in, and what the models cost and how to brief one is set out in the five sampling models.

The five trade mechanics, which the buyer never sees

MechanicA worked exampleWhat to watch
Off invoice or buying allowanceEight per cent off the case price on orders placed in a named four week windowRetailers can buy deep and sell at full price, so tie it to a promoted retail price in writing
Co-op advertising moneyA share of the retailer's local advertising cost, paid against proof of runningAsk for the tear sheet or the screenshot. Unproven claims are the normal leak here
Display and position paymentsPaying for an end cap, a gondola end or a shelf position for a seasonPrice it per store per week and compare it with what the same money buys in media
Sales contestA prize for the distributor branch that sells the most in a quarterIt moves effort to the product with the prize and away from the rest of your range
Merchandising and dealer supportPrinted point of purchase material, demo stock, a trained demonstrator for launch weekMaterial that does not fit the fixture never gets put up, so measure the fixtures first

Sales promotion is one discipline inside a larger plan rather than the plan itself, and the way it sits alongside advertising, public relations and direct marketing is set out in integrated marketing communication. The place of promotion among the five tools of the mix is covered in the role of promotion as a marketing function.

The arithmetic that picks the mechanic

Take a product selling at forty dollars with twenty dollars of gross margin, and compare three offers on how many units each one has to sell to stand still.

OfferMargin per unit after itUnits needed to hold the same gross profit
No promotion20.001.00x
20 per cent off12.001.67x
Free delivery worth 6.0014.001.43x
Gift with purchase costing 4.0016.001.25x

The discount has to shift two thirds more units than the gift does to be worth the same to you, and it is the one of the three the buyer remembers as the new price. That single table settles most arguments about which mechanic to run, and it takes two minutes with your own margin in place of the twenty dollars.

What the promotion costs after it ends

  • The reference price moves. Buyers who only ever purchase on offer have learned the real price. The fix is frequency: rare enough that waiting does not pay.
  • Demand gets borrowed. A strong fortnight followed by a weak month is often the same demand, counted once. Compare a full quarter against the quarter before rather than the promotion week against a normal week.
  • Margin mix shifts. A promotion on the item with the thinnest margin can grow revenue and shrink profit. Check gross profit, not revenue, before calling it a success.
  • Operations carry it. Codes that break at the checkout, stock that runs out on day three, staff who have not been told the terms. The mechanic is where promotions fail operationally, and it is worth a rehearsal.

The terms that keep a promotion legal in the United States

  • A former price has to be real. If you say reduced from, the higher figure has to have been a genuine selling price offered for a reasonable period, not a number invented to make the discount look larger. The Federal Trade Commission publishes guidance on former price comparisons, and it is the first thing a complaint gets measured against.
  • No purchase necessary is not a style choice. A prize draw that requires a purchase to enter starts to resemble a lottery, which is why sweepstakes carry a free entry route, published rules, eligibility, dates, the odds or the number of prizes, and the name of the promoter.
  • Publish the conditions with the offer. End date, minimum spend, exclusions, one use per customer, while stocks last. A condition revealed at the checkout is the single most common cause of a complaint.
  • Honour the opt out. A promotional email is still a marketing message, so anybody who unsubscribed stays suppressed even for a good offer.
  • Keep the records. Dates, terms as published, volumes, redemptions. A promotion questioned six months later is defended with its paperwork.

Writing the one you are going to run

Six lines decide a promotion: the audience, the offer, the mechanic, the dates, the channels and the number that tells you whether it worked. Four of those filled in for a store launch, a referral, a B2B trial and a local footfall push sit in the marketing promotion sample, which is the page to write from once this one has settled which mechanic you want.

Asked and answered about sales promotion

What is the difference between sales promotion and advertising?

Sales promotion changes the terms of the deal for a short period. Advertising changes what somebody knows or feels about the product, and usually carries the promotion as its message. One is the offer, the other is the announcement of it.

What is an example of a consumer sales promotion?

A one use fifteen per cent code, valid for ten days with a minimum order, emailed to customers who bought once in the last year and did not return, with a reminder on day eight and redemption measured against the same group the previous month.

Are samples a sales promotion?

Yes, and they sit at the opposite end of the toolkit from a discount. A sample spends unit cost to remove doubt, a discount spends margin to remove hesitation about price. Pick by which barrier you actually have.

How long should one run?

Long enough for the audience to see it twice and short enough that the deadline does the work, which for most businesses means seven to fourteen days with a reminder before the end. Always on mechanics such as loyalty and referral are the exception and get reviewed quarterly instead.

How often is too often?

When repeat buyers stop buying between offers. At that point the generosity is better moved into bundles, loyalty or service, where it keeps the headline price intact.

Which mechanic suits a service business?

Trial and proof rather than price. An extended trial, a paid pilot at a fixed fee, a free first session or a diagnostic report all lower the risk of starting, which is the barrier in services. A discount on a service mostly signals spare capacity.

The recommendation nobody discounted

Every mechanic above assumes the buyer has already arrived at your product and is deciding whether to act. A growing share of buyers starts a step earlier, by asking ChatGPT, Gemini, Perplexity or Claude which product or supplier to choose, and takes the two or three that come back named. That shortlist is assembled from what has been published about each company, so no offer reaches it. Worth checking what the current answer says in your category, with your own name left out of the question so the reply comes back clean. AI Knows Us asks those buying questions across the main assistants and records who gets named and which sources the answers were built from.

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