How to Run a Promotional Campaign End to End

Three conditions have to hold at once. Most campaigns fail because only one does.

• Healthy margin. A discount comes out of margin, so a thin line has nothing to give. Promoting your thinnest line is the most common campaign mistake and it is usually made because that line is the easiest to sell.
• Spare capacity. Promoting something you cannot deliver more of converts a marketing success into a delivery failure and a set of unhappy customers.
• A reason to act now. Seasonal fit, a deadline, a genuine constraint. Without one, a discount simply moves purchases that were going to happen anyway into a cheaper window.

A discount is not a marketing cost, it is margin removed. The arithmetic is unforgiving and almost never done.

On a line with 40% gross margin, a 20% discount takes half your margin per unit. To make the same total profit you now need to sell twice as many. On a 30% margin line, a 20% discount takes two thirds of it, and the volume has to roughly triple.

Work out that break-even multiple before choosing the number. If the required volume increase is implausible for your capacity or your market, the discount is too deep regardless of how attractive it looks.

Price is the crudest lever and the only one that permanently trains customers to wait. Several alternatives cost less margin and work as well or better:

• Added scope. Something included at a cost to you well below its perceived value.
• Better terms. Payment spread, deferred start, extended warranty. Costs cash flow rather than margin, which for many businesses is the cheaper currency.
• Priority. Guaranteed scheduling in a busy period. Costs nothing if you have the slot.
• Bundling. Pairs a strong line with one you want to move, protecting the headline price on both.
• A genuine deadline. Real scarcity — a capacity limit, a season ending — needs no discount at all.

Repeated discounting teaches your market that your list price is fiction, and that lesson outlasts the campaign by years.

Written down, before anything is produced. Six lines is enough:

• The offer, stated precisely enough that a customer could not misread it.
• Who it is for. Existing customers, lapsed customers, or new — these need different messages and usually different channels.
• Start and end dates. A campaign without an end is a price change.
• Channels, chosen for where your customers actually are rather than where posting is easiest.
• The success measure, defined now. Units, margin dollars, or new customers acquired — decided before launch, because deciding afterwards guarantees you pick the metric that looks best.
• The capacity ceiling. How many you can actually deliver, and what happens when you hit it.

Write the core message once, then adapt it per channel. Rewriting from scratch for each place is where campaigns consume a week they did not have.

The core message needs four things and nothing else:

• What the offer is, in one sentence.
• Who it suits, so the wrong people self-select out.
• When it ends.
• What to do next, as a single unambiguous action.

Everything else is decoration. The most common failure is copy that explains the offer beautifully and never states plainly what the reader should do.

A workable rhythm for a two-week campaign:

• Existing and lapsed customers first, a few days before public launch. They convert best, and the early signal tells you whether the offer lands before you spend on reach.
• Public launch, across your chosen channels on the same day.
• Mid-point reminder, with a different angle rather than the same message repeated.
• Closing reminder, 24 to 48 hours before the end. Typically produces a disproportionate share of the total.

Against the measure you set before launching, and on margin rather than revenue.

• Margin dollars, compared to an equivalent period without a campaign. This is the number that decides whether to run it again.
• Cannibalization. How much was bought at a discount by people who would have paid full price? Impossible to measure exactly, but a campaign that raised volume 15% on a 20% discount almost certainly lost money.
• New versus existing customers. A campaign that acquires new customers may justify losing money on the first purchase. One that only discounted your existing base does not.
• Delivery quality. If the volume degraded your service, the cost lands in future months as churn.

Write the answer down. Campaign memory in small businesses is famously optimistic, and the note you make now is what stops you rerunning a loser next year.

Compare against doing nothing

The comparison that matters is not last year's campaign, it is an ordinary period with no campaign at all. Businesses routinely record a promotion as successful because sales rose during it, without checking whether sales rise in that month anyway.

Seasonal businesses are particularly exposed to this. Running a spring promotion in a business whose spring is always busy will produce a flattering number regardless of whether the campaign did anything, and the discount is paid for out of demand you already had.

If you have twelve months of history, the equivalent period last year is the honest baseline. If you do not, the two months either side are a rough substitute. Either way, write down which baseline you used, so next year the comparison is against the same thing.

The week after a campaign is where most of its remaining value is either collected or thrown away. Four things are worth doing and almost nobody does them.

Follow up the people who did not buy

Everyone who engaged and did not convert is a warm list that will never be warmer. A short note after the deadline — not extending the offer, simply asking whether the timing was wrong or the fit was — produces both sales and the most honest market feedback you will get all year.

Onboard the new customers deliberately

A discount buyer who has a poor first experience is worse than no customer, because you paid margin to acquire them and will not get the repeat purchase that justified it. The whole economics of a discount campaign rest on the second purchase.

Return to full price without apology

The first inquiry after a campaign will ask whether the offer still stands. The answer is no, stated plainly and without embarrassment. Any hesitation here teaches the market that your deadlines are soft, which undoes the campaign you just ran.

Write down what you would change

Immediately, while it is fresh. Which channel worked, whether the discount was too deep, whether capacity held. Six months later you will remember only whether it felt busy, and that recollection is how the same mistake gets repeated annually.

Planning is short and it is where the money is made or lost. Production is the bulk of it, and the post-mortem is the hour almost nobody spends — which is why the same mistakes recur annually.

Choosing the offer and sizing the discount are commercial judgments that should stay with you. Reading the sales data, writing the brief, producing the assets, staging them across channels and assembling the post-mortem is production work.

It is also lumpy — nothing for weeks, then a concentrated block — which is exactly the shape of work that gets postponed until the season it was meant to precede has started.