Commercial diligence often begins with a market number and ends with a revenue forecast. Both are necessary. Neither is enough.
A model can be internally consistent and still describe a business that will struggle to grow. Market size may be real but inaccessible. Customer enthusiasm may not translate into willingness to pay. A route to market may work at today’s scale and become uneconomic when expanded. Management may be capable of running the current company but not the next version of it.
The purpose of commercial diligence is therefore larger than validating the forecast. It is to identify what has to be true for the growth story to work, test those conditions against evidence and translate the thesis into an executable plan.
This matters in India, where a national growth line can conceal major differences by state, city tier, channel, price point and customer segment. The market may be large while distribution remains fragmented. Growth may be attractive while collections, service intensity or working capital reduce the quality of that growth. Good diligence brings these realities into the investment case early.
1. Is the demand real, paid and durable?
The first question is not how large the market is. It is what evidence shows that the target customer will buy this offer, at the expected price, often enough to support the plan.
Top-down market estimates help establish context. They do not show how much demand is available to this company. Teams should distinguish between total need, customers who can be reached, customers who can pay and customers who will choose the product over a credible alternative. Each step reduces the addressable opportunity, but increases the usefulness of the answer.
The strongest evidence comes from behaviour: repeat purchase, retention, usage, renewal, share of wallet, price realisation and payment history. Customer interviews add depth, particularly when they include former customers, lost prospects and low-usage accounts. Management references alone tend to overrepresent the most satisfied buyers.
For a new product or geography, evidence may be limited. In that case, diligence should make uncertainty visible. Small pilots, pre-orders, distributor commitments and controlled pricing tests are more informative than a confident forecast built on broad intent.
2. Why will this company win?
A growing category can attract competitors faster than it creates profit. The commercial case must explain why this company will win a disproportionate share and why that advantage can endure.
The answer may lie in product performance, brand, distribution access, switching costs, proprietary data, service capability, regulation, cost position or a distinctive customer experience. Often it is a combination. The key is to test the advantage from the customer’s point of view. A feature matters only if it changes choice, willingness to pay, retention or cost to serve.
Competitor analysis should include the alternatives customers actually use, not only firms in the same category. In India, an organised provider may compete with a local specialist, an informal supplier, an in-house workaround or the decision to delay purchase. Diligence should ask what customers would do if the target did not exist. That answer reveals the true competitive set.
It is also useful to separate an advantage that helps win the next customer from one that protects the installed base. The two are not always the same. Heavy discounting may create acquisition without loyalty; strong integration may create retention without efficient new sales.
3. Can the route to market scale economically?
A route to market is not scalable merely because revenue is growing. It must produce acceptable economics as volume rises.
Teams should test customer acquisition cost, sales productivity, conversion, discounting, channel margin, onboarding effort, service load and payback by segment. A blended average can conceal that one region or channel creates value while another consumes it. Cohort and contribution analysis usually tells a more useful story than a single company-wide ratio.
The same discipline applies to partnerships and distribution. A signed partner is not a productive partner. Diligence should examine activation, throughput, partner concentration, incentives, inventory movement and the company’s ability to support the channel. Where a founder or a few senior sellers originate most revenue, the apparent go-to-market engine may still be a relationship network.
The practical question is: what must be added for the next unit of growth—salespeople, discounts, working capital, implementation capacity or senior attention? The answer determines whether scale creates operating leverage or simply adds complexity.
4. Do the growth assumptions survive operational reality?
Commercial plans often assume that demand converts smoothly into recognised revenue. Operations rarely behave that neatly. Capacity, talent, technology, regulation, fulfilment, collections and service quality can all constrain growth.
This is why a bottom-up build is essential. Revenue should be connected to customers, territories, products, channels, sales capacity and time to productivity. Each major assumption should have an operational counterpart. If the plan requires twice as many enterprise wins, does the company have enough qualified sellers and implementation teams? If it assumes a new geography, are the local channel, compliance and service requirements understood?
Revenue synergies deserve particular care. McKinsey’s survey of experienced M&A executives found an average 23% gap between aspiration and achievement, with revenue synergies taking about five years to realise versus roughly two years for cost synergies. The lesson is straightforward: commercial upside needs named customers, offers, owners and milestones. A percentage applied to combined revenue is not an execution plan.
5. What must be true after the transaction?
The investment case should end with a set of conditions, not a higher valuation multiple. What must management do in the first 100 days? Which capabilities must exist within twelve months? What customer or channel evidence should be visible before more capital is committed?
This question turns diligence into a value-creation agenda. It identifies dependencies, sequences initiatives and exposes whether the leadership team has enough capacity. It also makes the downside case more specific. If a channel takes six months longer to activate, if price realisation falls or if hiring lags, management should know which actions and capital decisions change.
A good answer includes owners, milestones and leading indicators. Revenue is a lagging result. Pipeline quality, activation, conversion, usage, implementation time, retention and collections show earlier whether the thesis is developing as expected.
Use an evidence hierarchy
Not all evidence deserves equal weight. We find it useful to move from assertion to observation in a deliberate sequence:
· Management view. What does the team believe, and which assumptions drive the plan?
· Operating data. What do transactions, cohorts, margins, pipeline, retention and collections show?
· Customer and channel evidence. How do buyers, lost prospects and partners describe value, alternatives and friction?
· Market verification. What do competitor pricing, capacity, regulation and local market checks confirm or contradict?
· Execution test. Can the required people, systems, capital and time realistically support the forecast?
Contradictions are not a failure of diligence. They are where diligence creates value. A gap between management conviction and customer behaviour points to the issue that the investment committee and operating team need to understand.
A better outcome from diligence
Commercial diligence should not be a contest between optimism and scepticism. Its job is to improve the quality of the growth thesis.
The best work makes the market more specific, the advantage more testable, the route to market more economic and the execution plan more concrete. It tells investors and management what deserves confidence, what remains uncertain and what should happen next.
When those five questions are answered with evidence, the numbers become more than a forecast. They become a disciplined view of how value can actually be created.
Source notes
1. McKinsey & Company, Seven rules to crack the code on revenue synergies in M&A, October 2018.
2. McKinsey & Company, Capturing M&A value: Cost, capital, and revenue synergies, February 2026. The analysis emphasises bottom-up, leadership-owned synergy cases grounded in execution reality.
