Will customers come back for it?

A new product can attract attention, win a retailer's first order and still fail to build a business. The launch has to survive the moment when novelty and introductory promotion wear off.

In a product-launch case, establish why the target customer would choose the offer, whether they will keep buying and whether the company can earn an attractive return while delivering it. Then decide what evidence justifies the next commitment.

The best launch recommendation is often specific about scope. It may support one customer segment, channel or region while withholding a much larger rollout until the economics are demonstrated.

Define the customer occasion before listing features

Suppose a food company is considering a refrigerated protein snack for young professionals. Management wants to know whether to launch nationally through convenience stores.

“High protein” describes a feature. The customer occasion might be an afternoon snack between meetings: something tasty, filling, portable and easy to eat at a desk.

That changes the research questions. What do customers buy for that occasion today? Why would they switch from a bar, yoghurt, fruit or a fresh snack? Can they find the product where and when they need it? Does refrigeration make it less convenient after purchase?

Use those answers to define the initial target. Broad demographic labels are useful only when they explain a buying decision. A gym-focused buyer and an office worker may value different benefits even if both are young professionals.

Turn the launch question into a few tests

A clear opening could be:

“I would test whether the snack can earn repeat purchases at a profitable delivered cost. First, does it solve an important need better than the customer's current snack? Second, can we supply the right stores reliably without excessive waste? Third, do the additional sales cover launch and operating costs after any losses from our existing range? I would start with paid trial and repeat demand before recommending national distribution.”

That gives demand, delivery and economics a shared purpose. It also explains why the first national order from a retailer is insufficient: stock on the shelf still has to leave the shelf and generate another purchase.

Measure trial, repeat behaviour and incremental sales separately. Set the success threshold around this product and decision, instead of importing a universal launch benchmark.

Separate trying the product from choosing it again

Taste tests and concept interviews can explain what people like or dislike. Paid purchases show whether the proposition survives a real choice at the intended price.

Track first-time buyers separately from repeat buyers. If a store sells 100 units this week and 120 next week, the increase does not tell you how many of the first week's buyers returned. A new promotion could have brought in an entirely new group.

Give each buyer a comparable opportunity to repeat. Someone who bought yesterday has had less time than someone who bought a month ago. For this frequently purchased snack, an eight-week pilot could observe several potential buying occasions, but the analysis should still compare buyers at the same time since their first purchase.

Look at behaviour alongside interviews. Customers may say they intend to buy again and then choose something else. Ask what displaced the snack in the actual shopping occasion rather than treating stated enthusiasm as a forecast.

Follow the money through the channel

Suppose the shelf price is £3, but the manufacturer receives £1.80 for each unit sold after the retailer's share and agreed trade deductions. Manufacturing and packaging cost £1 per unit produced, and refrigerated distribution costs another £0.20 per unit delivered.

If every delivered unit sells, contribution is £0.60 per unit before launch and other fixed costs. But the contract requires the manufacturer to credit unsold units. Waste therefore changes the calculation.

Consider a pilot shipment of 1,000 units, with 800 sold and 200 unsold:

ItemCalculationAmount
Manufacturer revenue after credits800 × £1.80£1,440
Manufacturing and packaging1,000 × £1.00£1,000
Refrigerated distribution1,000 × £0.20£200
Contribution before fixed costs£1,440 − £1,200£240

Contribution is £0.30 per sold unit, half the £0.60 implied by assuming every unit sells. The company pays to produce and deliver the unsold units too.

If 950 of the same 1,000 units sell, contribution rises to £510. That makes replenishment frequency, store selection and forecasting commercially important, rather than secondary operational details.

Confirm who bears waste, markdowns and returns. Different contract terms produce different economics; do not subtract a loss the manufacturer does not incur or omit one it has agreed to absorb.

Quick Case Math Drill

A flower grower is piloting bouquets in convenience stores. Stores credit back every unsold bouquet, but the grower has already paid to make and deliver it.

Received per sold bouquet
£4.00 after store margin and deductions
Cost per delivered bouquet
£2.20 to make, £0.40 chilled transport
Pilot shipment
500 delivered, 350 sold, 150 credited

What contribution did the pilot earn before fixed costs, in pounds?

Ask how much profit is genuinely additional

Suppose 160 of the 800 pilot sales replace purchases of the company's existing snack. Each displaced old-product sale would have contributed £0.40.

Lost contribution from the existing range is £64. Deducting it from the new product's £240 leaves £176 of incremental contribution before fixed launch costs and other changes.

That does not mean all cannibalisation is bad. The new offer might defend the customer relationship, earn a stronger margin in future or replace an ageing product intentionally. But the investment case should reflect the effect on the total business.

Also consider the retailer's perspective. A new line occupies scarce shelf space. If it merely shifts sales from an equally attractive existing product while increasing waste, the retailer may have little reason to maintain the listing.

Check whether scale improves or weakens the model

A pilot in the best city-centre stores may overstate national demand. Those stores could have unusually high footfall, ideal target customers or exceptional launch support.

Expansion might lower manufacturing costs, but it can also introduce longer delivery routes, lower sales per store and more waste. Show both effects rather than applying an automatic “economies of scale” adjustment.

For example, if annual fixed launch and operating costs are £150,000, a model earning £0.30 contribution per sold unit needs 500,000 sold units to cover them, before cannibalisation. Convert that requirement into stores, units per store and weeks of trading. Then ask whether the sales rate is consistent with the pilot after launch promotions fade.

The market-sizing framework helps build that demand estimate. The pricing framework helps test how price and customer response alter it.

Quick Answer Repair Drill

A chilled soup brand piloted in 10 busy station stores with brand-funded sampling staff and free displays. A candidate recommends a national launch.

Pilot sales
50 units per store per week
National projection
50 × 400 stores × 52 weeks = 1.04m
Break-even volume
600,000 units a year

What is the most serious flaw in the candidate's case for launch?

Choose your answer

Design the pilot around the unresolved decision

Start with a limited offer and a set of stores that can test the intended rollout, including locations beyond the very best performers. Track paid trial, repeat purchases, realised manufacturer revenue, waste, stock availability and replenishment.

Set the decision rules before reading the results. The required sales rate and waste level should come from the financial model. The repeat evidence should support sustained demand at the intended price. A store cannot demonstrate weak customer interest when the product is repeatedly unavailable, so interpret demand and availability together.

If repeat purchases are strong but waste is high, improve replenishment and store selection before widening distribution. If trial is strong and repeat is weak, investigate the product experience and value. If demand and delivery work but the economics remain unattractive, revisit price, costs or the offer itself.

Each result should lead to a different next action. That is what makes a pilot useful.

Make the recommendation proportionate to the evidence

For this snack, a national launch would be premature if the company only has positive concept feedback and an initial retailer order. A limited paid pilot is a stronger recommendation because it can resolve repeat demand and waste economics before a larger commitment.

Explain what would justify scaling and what would stop it. You are helping management choose the next investment, not asking it to research indefinitely.

For a different launch problem, try Fintech Debit Card Launch. Replace snack purchases with the customer behaviour that creates value for that product, and build the economic test around that behaviour.

Structure drill

Would your case structure convince an MBB interviewer?

Fintech Debit Card Launch

Test customer adoption, delivery and economics for a debit-card launch. Present your approach to Casey, Case Room’s AI interviewer, then review feedback on your structure and starting point.

Frequently asked questions

Framing the launch question

Where should I start a product launch case?

Start with the customer occasion rather than the product's features. 'High protein' describes the refrigerated snack. The occasion might be an afternoon snack between meetings that is tasty, filling, portable and easy to eat at a desk. That framing shows which alternatives the product competes with and why a young professional might switch.

How should I structure my opening for a launch case?

Frame the launch as a few tests tied to the decision. Does the snack meet an important need better than the customer's current choice? Can the company supply the right stores reliably without excessive waste? Do additional sales cover launch and operating costs after any losses from the existing range? Then say which test you would start with.

Reading demand evidence

Are taste tests and concept interviews enough to justify a launch?

No, taste tests and interviews explain what people like or dislike, but not whether they will pay. Paid purchases at the intended price show whether the proposition survives a real choice. Use qualitative research to understand reactions and refine the offer. Then judge whether demand will outlast novelty using paid trial and repeat buying.

Do rising weekly sales prove customers are coming back?

No, aggregate sales growth cannot show how many first-week buyers returned. If a store sells 100 units one week and 120 the next, a new promotion could have brought in different shoppers entirely. Track first-time buyers separately from repeat buyers. That shows whether the product is earning loyalty or simply attracting fresh trial.

Will a pilot in the best stores predict national results?

Probably not on its own, because top city-centre stores may overstate demand. They can have unusually high footfall, ideal target customers or exceptional launch support. Include locations beyond the best performers, so the pilot reflects the stores a national rollout would depend on. Expect sales per store to differ at scale.

Working out the economics

How do I calculate unit contribution when selling through a retailer?

Start from what the manufacturer receives rather than the shelf price. A £3 shelf price yields £1.80 after the retailer's share and trade deductions. Subtract £1 for manufacturing and packaging and £0.20 for refrigerated distribution. That leaves £0.60 of contribution per unit before launch and fixed costs, provided every delivered unit sells.

Why does waste matter so much for a chilled product?

Unsold units have already incurred production and delivery costs. In the example, the contract also requires the manufacturer to credit unsold stock. The £0.60 contribution therefore only holds if every delivered unit sells. Waste belongs at the centre of both the economics and the pilot, alongside stock availability and replenishment.

How should I account for cannibalisation of existing products?

Deduct the contribution lost from displaced sales. Suppose 160 of 800 pilot sales replace purchases of an existing snack contributing £0.40 each. The lost contribution is £64. Subtracting that from the new product's £240 leaves £176 of incremental contribution before fixed launch costs. Base the launch decision on that incremental figure.

Is cannibalisation always a bad sign?

Not necessarily. A new offer that takes some sales from the existing range might still help defend the customer relationship. The point is to measure the trade-off explicitly. Then judge whether the strategic benefit justifies the lost contribution, rather than ignoring the loss or penalising it automatically.

Does scaling up always improve launch economics?

No, scale cuts both ways. Expansion might lower manufacturing costs, but it can also bring longer delivery routes, lower sales per store and more waste. Model both effects explicitly rather than applying an automatic economies-of-scale adjustment. Then check whether national volumes still cover the annual fixed launch and operating costs.

Pilots and the recommendation

What should a launch pilot measure?

A pilot should measure whatever resolves the decision that is still open. Use a limited offer in stores that represent the intended rollout. Track paid trial, repeat purchases, realised manufacturer revenue, waste, stock availability and replenishment. Together these test sustained demand and delivery economics, which concept feedback and an initial order cannot show.

When should I set the pilot's success criteria?

Set them before reading any results, so the data cannot be rationalised afterwards. Derive the required sales rate and acceptable waste level from the financial model. Also define what repeat evidence would show sustained demand at the intended price. Agreeing these thresholds upfront makes the pilot a genuine decision tool rather than a showcase.

Should I recommend a national launch if a retailer has already placed an order?

Not on that basis alone. Positive concept feedback and an initial retailer order prove neither repeat demand nor workable waste economics. A limited paid pilot is the stronger recommendation. It can resolve those uncertainties before the company makes a larger commitment to national distribution through convenience stores.

What should my final launch recommendation include?

Your recommendation should name the next investment and the conditions attached to it. Explain what pilot evidence would justify scaling and what would stop the launch, so management knows how the decision will be made. The aim is to help the client choose a proportionate next step rather than commit everything on incomplete evidence.

Product Launch Case Framework: Go-to-Market Logic | Case Room