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Published: 2026-09-12 · Last reviewed: 2026-09-12 · Reading edit: 2026-09-12 Someone asks how big the market is. You find three reports with three different answers, but none tells you whether the companies you can reach would actually buy. Start with the decision in front of you. This guide helps you gather enough useful evidence to choose where to test, without turning research into an endless slide deck.

Start with a decision

Use this guide before committing a quarter of product or marketing work to a new audience. Write the choice and deadline first: “Should we test inventory reconciliation with regional distributors this quarter?” Record what evidence would make you defer the test. If no finding could change the decision, label the exercise background reading rather than validation.

Build an evidence trail

  1. Choose which companies you are researching. Specify geography, operating model, company size, buyer role and the task being purchased. Count buying organizations rather than every employee who might use the product. Distinguish subsidiaries from independent purchasing units.
  2. Describe the current workflow. Identify tools, services, manual work, approval paths and existing spending. Read procurement documents and actual job descriptions alongside vendor material. Vendor category definitions may exaggerate the audience relevant to your offer.
  3. Separate facts from estimates. For each number record its source, publication date, population and definition. A global software forecast cannot establish demand in your reachable segment. Show the assumptions connecting a broad count to a serviceable market.
  4. Investigate recent behavior. Speak with people who recently bought, delayed, rejected or worked around a solution. Ask what happened and what they tried. Do not turn a favorable response to your pitch into a completed purchase decision.
  5. Look for contradictions. Compare the strongest buying case with a company that appears similar but did not buy. Record whether the difference is urgency, authority, integration, economics or simply missing evidence.
  6. Decide what to try next. Produce a short decision memo with the strongest finding, most important unanswered question, what could go wrong, and who will run the next test.

Worked example

A fictional team identifies 900 distributors in a region. Only 180 appear to run multiple warehouses; 70 have the supported accounting system. Neither filter proves a budget exists. Six interviews reveal that month-end reconciliation matters, but four firms outsource it cheaply. The team tests the two in-house workflows before estimating demand from all 70 organizations. The useful finding is that some otherwise suitable companies already solve the problem cheaply. That changes whom the team should speak to next. Six selected interviews cannot tell them what proportion of the whole market will buy. Their short decision note could look like this:

Copyable research brief

Review the result

Ask a colleague to trace your three most important conclusions back to evidence. A colleague should be able to understand a number’s population and date without needing you to explain the slide. Refresh material assumptions before spending, especially where regulations, budgets or technology requirements may have changed. Stop adding sources when the next decision is clear; investigate the remaining uncertainty through a test.

Try it with your own work

Choose one market you are considering. Write the decision you need to make, then list three facts that could change your mind. Find evidence for the most consequential one first.

Sources and scope

The example is fictional; any numbers illustrate the method rather than a benchmark. Adapt the worksheet to your own situation. Use segmentation to choose groups that require different actions, then idea validation to test the proposed offer. Chapter guide · All playbooks
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