An unexplained change in inventory does not establish a reimbursable loss. For an Amazon lost inventory reimbursement investigation, identify the event, trace the affected units and check whether the inventory or payment has already been restored.
This guide focuses on fulfillment-center stock investigations, with checks to separate inbound shipments and removal orders. The applicable Amazon FBA inventory reimbursement policy governs eligibility, evidence and valuation in your marketplace.
Classify where the discrepancy occurred
Start with the location in the workflow: receiving a shipment, handling stock inside Amazon’s network, a customer return, or sending a removal order back. Different events can require different routes and documents. A shipment shortfall should not automatically be filed as a warehouse loss.
| Event | Start with | Keep separate |
|---|---|---|
| Inbound receiving discrepancy | Shipment contents, receiving records and delivery evidence | Unreceived units and stock later reported lost |
| Fulfillment-center loss or damage | Detailed inventory events and reference IDs | Loss, disposition changes and restoration |
| Removal issue | Removal order, tracking and received condition | Shipment creation, delivery and damage evidence |
| Customer-return discrepancy | Order, refund and return timeline | The return-specific review |
Trace events rather than subtracting totals
Use detailed inventory records to capture the product, event date, quantity, fulfillment center and reference identifier where available. Extend the reporting range enough to inspect related movements, but keep the claim deadline based on the applicable event rule.
Amazon staff guidance on Inventory Ledger reconciliation explains why a found quantity can be independent of a loss in the same reporting period. It recommends tracing unit changes and linking financial records to inventory references. A simple total of lost units minus found units may not identify the unresolved event.
Match existing reimbursement and restoration records
Review reimbursement transactions and existing cases alongside inventory movements. Use identifiers where they can be matched and document anything you cannot reliably link. Do not assume that every general-adjustment payment belongs to the loss you are investigating.
If a reversal appears, investigate the related financial and inventory records before calling the case resolved or unpaid. Ask Seller Support for event-level clarification when the available records cannot explain the relationship. Avoid counting the same units under more than one case.
Illustrative investigation: A report shows three units lost and two units found. Those two found units may belong to a different event. Trace the references and existing reimbursements before concluding that exactly one unit remains claimable.
Verify eligibility, dates and valuation
Check the claim type in the current marketplace policy. Record the event that starts the clock and the available submission window. A reconciliation report can cover a long historical range without making every event in that range eligible for a new claim.
Amazon’s pre-order inventory valuation announcement describes a manufacturing-cost basis for affected inventory lost or damaged before a customer order. Use the current event-specific rule and required cost documentation; retail selling price is not a universal reimbursement amount. The policy guide explains how to separate these checks.
Assemble one evidence packet per issue
- Marketplace, claim category and affected SKU or FNSKU.
- Event date, quantity and detailed report references.
- Shipment or removal IDs and supporting documents, if relevant.
- Existing case IDs, reimbursement transactions and restoration events.
- The unresolved quantity and why it remains unexplained.
- Required sourcing or cost evidence for the applicable valuation.
Keep the amount requested consistent with the rule and evidence. If you cannot establish a quantity or link a transaction, state the uncertainty and request investigation rather than presenting an estimate as a verified loss.
File, reconcile and close the loop
Use the claim-specific route available in Seller Central and follow the filing checklist. Save the case ID, assign an owner and reconcile any resolution against the original event.
The Rivet Rocket preview shows how potential cases and records can be brought together. Confirm the supported event types and marketplaces before onboarding. A flag is an investigation prompt, not a guarantee of recovery. Use the fee guide when deciding how much filing work to delegate.
Save a case log before you submit
Download the blank reimbursement case log (CSV). Keep one row per investigated event. It includes fields for identifiers, policy dates, evidence, prior resolutions, the filing owner and the outcome. It contains column headers only and does not determine eligibility or calculate deadlines.
Use your current Seller Central account to fill the route, required documents and claim window. Leave a field unverified until a source supports it. A tool-generated record and this checklist do not replace Amazon’s eligibility decision.
Sources and review scope
Public sources reviewed October 4, 2026. Signed-in policy pages, claim eligibility and Seller Central screens have not been independently verified for your account. Confirm marketplace rules and provider agreements before acting.
