Experience-Informed Digital Acquisition Guides

Ecommerce Due Diligence Checklist

Review margins, suppliers, inventory, paid acquisition, marketplaces, customer behavior and operations before buying an ecommerce business.

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Editorial Note: We have hands-on experience with the product and service discussed on this site. We combine that experience with current source checks for changing features, pricing and marketplace terms.

Revenue And Margin

Start with source records and reconcile them across a consistent period. Bank or payment-processor records, accounting exports, marketplace statements and read-only dashboards can each answer different questions. The goal is not simply to reproduce the seller’s profit number, but to understand how revenue is earned, which costs are necessary to keep earning it, and whether reported performance is repeatable.

Normalize unusual items carefully. Owner add-backs, one-time costs, discretionary expenses and recent changes can be legitimate adjustments, but every adjustment should have a reason and supporting evidence. Compare monthly trends, look for seasonality and identify revenue or cost items that changed shortly before the sale process.

Translate findings into the deal. If an important number cannot be verified, model a conservative case rather than assuming the best outcome. Material uncertainty can justify additional diligence, a different price, a holdback or another structure appropriate to the transaction.

Inventory

Define what this step is meant to prove before collecting documents. Good diligence connects a claim to evidence, identifies what remains uncertain and asks whether the issue can materially affect future cash flow or transferability.

Compare the current state with historical patterns. One month or one screenshot rarely tells the full story. Look for trends, exceptions and dependencies, then ask the seller to explain material changes with evidence that can be independently checked where practical.

Record the conclusion and its effect on the deal. Some findings simply confirm the thesis; others change valuation, transition planning or transaction terms. The purpose is a better-informed decision, not paperwork for its own sake.

Suppliers

Map the operating rhythm by day, week and month. Identify tasks performed by the owner, employees, contractors, suppliers and software. Ask how exceptions are handled, not only how the standard process works; unusual cases often reveal where undocumented knowledge sits.

Estimate the real replacement workload. An owner may describe a task as only a few hours while relying on years of tacit knowledge, relationships or quick decisions. Document procedures, access, service levels and the cost of replacing work the seller currently performs.

A buyer should know what must remain stable during transition. Critical suppliers, contractors, fulfillment partners and customer-support routines deserve early attention so the first weeks of ownership do not accidentally disrupt revenue.

Paid Acquisition

Review the acquisition engine at channel level rather than relying on total sessions or users. Separate organic search, paid media, direct, referral, email, social and marketplace traffic, then compare their trends over time. A business with several durable channels has a different risk profile from one whose economics depend on a single ranking, ad account or marketplace.

Ask for source access where practical and inspect the pages, campaigns, keywords or products producing the result. Look for sudden changes, tracking gaps, branded versus non-branded demand, paid spend required to sustain revenue and geographic or device concentration. For search-driven sites, examine whether a small number of pages or queries carry a disproportionate share of traffic.

The buyer’s question is transferability: will these acquisition channels still function under new ownership? Document accounts, permissions, creative assets, tracking, historical data and relationships that must transfer. If a channel depends heavily on the seller’s identity or a non-transferable account, value it accordingly.

Organic Acquisition

Review the acquisition engine at channel level rather than relying on total sessions or users. Separate organic search, paid media, direct, referral, email, social and marketplace traffic, then compare their trends over time. A business with several durable channels has a different risk profile from one whose economics depend on a single ranking, ad account or marketplace.

Ask for source access where practical and inspect the pages, campaigns, keywords or products producing the result. Look for sudden changes, tracking gaps, branded versus non-branded demand, paid spend required to sustain revenue and geographic or device concentration. For search-driven sites, examine whether a small number of pages or queries carry a disproportionate share of traffic.

The buyer’s question is transferability: will these acquisition channels still function under new ownership? Document accounts, permissions, creative assets, tracking, historical data and relationships that must transfer. If a channel depends heavily on the seller’s identity or a non-transferable account, value it accordingly.

Customer Metrics

Look beyond the top-line recurring revenue figure. Review customer cohorts, gross and net retention where relevant, cancellation reasons, contract terms and the share of revenue represented by the largest accounts. A stable average can conceal deteriorating recent cohorts or a single customer whose departure would materially change earnings.

Understand why customers stay. Product necessity, switching costs, integrations, service quality and contract structure can support retention; discounts, founder relationships or neglected alternatives may be less durable. Speak with customers only through an appropriate, seller-approved diligence process.

Connect retention to valuation and operating plans. Weak retention may require more acquisition spend just to stand still, while high concentration can justify additional protections or a more conservative forecast.

Fulfillment

Map the operating rhythm by day, week and month. Identify tasks performed by the owner, employees, contractors, suppliers and software. Ask how exceptions are handled, not only how the standard process works; unusual cases often reveal where undocumented knowledge sits.

Estimate the real replacement workload. An owner may describe a task as only a few hours while relying on years of tacit knowledge, relationships or quick decisions. Document procedures, access, service levels and the cost of replacing work the seller currently performs.

A buyer should know what must remain stable during transition. Critical suppliers, contractors, fulfillment partners and customer-support routines deserve early attention so the first weeks of ownership do not accidentally disrupt revenue.

Returns And Chargebacks

Define what this step is meant to prove before collecting documents. Good diligence connects a claim to evidence, identifies what remains uncertain and asks whether the issue can materially affect future cash flow or transferability.

Compare the current state with historical patterns. One month or one screenshot rarely tells the full story. Look for trends, exceptions and dependencies, then ask the seller to explain material changes with evidence that can be independently checked where practical.

Record the conclusion and its effect on the deal. Some findings simply confirm the thesis; others change valuation, transition planning or transaction terms. The purpose is a better-informed decision, not paperwork for its own sake.

Platform Risk

A red flag is a prompt for investigation, not automatically a reason to abandon a transaction. First determine the size of the exposure, how long it has existed, whether it is worsening and what evidence would reduce uncertainty. Concentration in a customer, supplier, traffic source, platform or owner can be manageable when it is understood and priced.

Stress-test the business with a downside case. Ask what happens to cash flow if the largest customer leaves, rankings fall, advertising costs rise, a supplier changes terms or the seller stops performing a key task. This turns a vague concern into an operating and valuation question.

Use the result to shape the transaction. Depending on the facts, a buyer may seek a lower price, transition support, representations, a holdback, seller financing or simply decide the risk sits outside the acquisition thesis. Material legal or financial risks deserve professional review.