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REPORTING

What Should an Amazon Seller Track Every Month?

A useful marketplace report should lead to decisions, not simply reproduce Seller Central data. The best monthly view connects sales, profitability, inventory, purchasing and account operations.

1. Sales Performance

Start with revenue, units and average selling price, then compare the current period with a relevant prior period. Break results down by product or meaningful product group so growth in one area does not hide deterioration in another.

  • Revenue and units sold.
  • Average selling price.
  • Top growth and decline by SKU.
  • Refunds and returns where material.

2. Profitability

Sales without product economics can create false confidence. Review contribution profit and margin using consistent cost logic. If actual freight, prep or COGS changed during the month, update the model instead of carrying forward old assumptions.

  • Amazon fees.
  • COGS and landed costs.
  • Prep and inbound freight.
  • Contribution profit and margin by SKU.
  • Loss-making or deteriorating products.

3. Inventory

Inventory reporting should show not just FBA available units but the entire pipeline. Separate available, inbound, in-transit and prep-center inventory so management can see what is actually sellable and what is still exposed to delay.

  • Inventory value.
  • Days of cover.
  • Stockout risk.
  • Overstock or slow-moving SKUs.
  • Inbound inventory by stage.

4. Purchasing and Supplier Exposure

Open POs explain what cash has been committed and what inventory is expected next. Track overdue supplier deliveries, prepayments, missing invoices and large supplier concentrations.

5. Amazon Operations

Include a short exception list for account health, catalog issues, stranded inventory, unresolved support cases, FBA receiving problems and other operational blockers. The purpose is to surface what needs management attention, not to copy every Seller Central notification.

6. Advertising Where Relevant

For brands and private label, include basic advertising performance alongside product economics. Avoid reading advertising metrics in isolation: rising sales can still be unattractive if the total contribution after advertising deteriorates.

7. End the Report With Decisions

The final section should answer: What changed? Why did it change? What are we doing about it? Assign owners and dates to material actions such as reorders, price changes, supplier follow-up, catalog fixes or cost corrections.

A Simple Monthly Management Pack

  1. Executive summary — 5 to 10 key observations.
  2. Sales and profitability by product.
  3. Inventory and inbound status.
  4. Purchasing and supplier status.
  5. Operational exceptions.
  6. Actions, owners and deadlines.

If this pack requires hours of manual reconciliation every month, read When Should an Amazon Business Move Beyond Spreadsheets?.

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