Resources

Free Ecommerce Seller Resources

Use these simple CSV worksheets with SellerTools Hub calculators and guides. They are designed for product research, paid traffic review, listing audits, inventory checks and marketplace comparison.

Complete worked-example datasets

These files contain synthetic teaching inputs and calculations, not merchant exports or industry averages. They are paired with the full article, cost definitions and an editable scenario model.

Download the shared assumptions and conventions (JSON). Input values are in USD. The articles describe costs excluded from each model and how each calculation can be independently reproduced.

Blank planning worksheets

How to use these resources

Start with one product and one decision. Fill the worksheet with actual data where possible, then use conservative estimates for anything unknown. The purpose is not to create a perfect financial model; it is to make hidden assumptions visible before the seller spends more money.

For example, a product may look profitable in a marketplace dashboard because the report highlights revenue. A worksheet forces the seller to add fulfillment, returns, coupons, fees and traffic cost. This can reveal whether the product has enough contribution margin to keep testing or whether the seller should improve price, offer or listing quality first.

When worksheets are better than dashboards

Dashboards are useful for reporting what happened, but they often separate the numbers a seller needs to compare. Advertising platforms may focus on ROAS, marketplace dashboards may focus on sales or payout, and supplier records may sit somewhere else entirely. A worksheet brings the decision into one place. That makes it easier to notice when a product is selling but not producing enough contribution profit.

Use the resources before a decision becomes urgent. If inventory is already running out, a seller may feel pressure to reorder without reviewing return rate, supplier lead time or cash timing. If an ad campaign is already spending heavily, the seller may keep it running because revenue looks good. A worksheet gives the seller a calmer moment to define thresholds before the dashboard becomes noisy.

Recommended workflow

Use the product profit audit before buying inventory. Use ad budget readiness before raising traffic spend. Use the listing audit when clicks do not become orders. Use the inventory reorder review when a product starts selling faster and the next purchase order becomes expensive. Each worksheet links back to calculators and guides so the user can understand the numbers behind the checklist.

How to keep resource files useful

Save a copy of the CSV for each product or launch. Add the date, traffic source and marketplace before changing inputs. This simple habit creates a record of why a decision was made. If a product later becomes unprofitable, the seller can compare the original assumption with the actual result and see whether the problem came from cost, price, ads, returns, fulfillment or conversion.

Do not use the same worksheet for every channel without changing the cost categories. TikTok Shop, Amazon FBA and Shopify each have different margin pressure. TikTok Shop may require coupons and creator activity, Amazon may require referral fees and PPC, and Shopify may require customer acquisition cost and payment processing. The worksheet should reflect the channel being tested.

Important limitation

These CSV files are educational planning tools. They are not accounting systems and do not replace official reports. A seller should still confirm tax, marketplace, payment, return and fulfillment data with the relevant provider before making a final business decision.