Concept testing that proves demand before you build or invest.

Concept testing is research that checks a new product idea with its intended buyers before money goes into building it. In new product development for payments and fintech, concept testing measures four things beyond interest: how urgently buyers need the idea, what would stop them adopting, which capabilities they expect and what they would pay. Nextyn runs concept tests in interviews and surveys with merchants, finance leaders and consumers, so the business case rests on buyer evidence.

A Nextyn concept test delivers three outputs: a demand verdict on the proposition, the adoption barriers and capabilities buyers expect, and willingness to pay by buyer group. Each output comes from interview and survey questions put to the buyers the proposition is meant for, covering urgency, adoption barriers, expected capabilities and willingness to pay, not from internal enthusiasm:

• Demand verdict: whether the problem is urgent enough for buyers to pay to solve
• Barriers and capabilities: what would stop adoption, and what buyers expect the product to do
• Willingness to pay: what each buyer group would pay, and how that shapes the business case

Nextyn runs concept testing through two methods, interviews and surveys, with the buyers a new payments or fintech proposition is meant for: merchants, finance leaders, consumers and the payments executives who would distribute it. Each concept test draws its sample from these groups, matched to the target segments and markets:

• Merchants, by size, industry and sales channel, from a network of 10,000+
• Finance, treasury and receivables leaders, for B2B propositions
• Consumers, where the proposition is sold to them
• Payments and fintech executives, from 2,000+ reachable CxOs

Nextyn runs concept testing in the United Kingdom, across Europe and in North America, among other markets. Markets are agreed at scoping and follow the launch plan, so a single-market test and a multi-country proposition check are each sampled to the target buyers. One example from Nextyn payments work: a survey of senior finance leaders across receivables, treasury, credit and collections that sharpened a B2B card acceptance value proposition.

Nextyn recommends commissioning concept testing before build budget, a launch date, a partner contract or test marketing spend is committed to a new proposition. At that stage a weak verdict still saves the build cost, and a strong one gives the business case evidence on urgency, adoption and price. Other triggers include a board asking for proof of demand, competing ideas fighting for one roadmap slot and a pivot into a new buyer group. Nextyn sends a research plan within 48 hours of the brief.

A Nextyn concept testing project runs in four steps, from brief to read-out, and nothing is commissioned until the client approves the plan. The client sees the sample, method and price before any fieldwork, and reads every interview with the Nextyn team at the end.

1. Submit the brief: the proposition, the target buyers and the investment decision the test must settle.
2. Receive a plan within 48 hours: who Nextyn will interview or survey, how, and what the work costs.
3. Approve the plan: fieldwork starts only after sign-off.
4. Review the read-out: every interview read together, showing where buyers agree, where they conflict and what is still open.

Nextyn sends a concept testing plan within 48 hours of receiving the brief, stating who will be interviewed or surveyed, how, and what the work costs. The plan sets the fieldwork length for the buyer groups and markets in scope, so a single-segment test and a multi-market proposition check each get their own timeline. Nothing is commissioned until the plan is approved, and the read-out ends in a demand verdict.

Nextyn's concept testing checks whether buyers want, will adopt and will pay for an idea before it is built, while usability testing checks how easily people use a design that already exists. Concept testing settles whether to invest, and usability testing settles how to refine the design.