February 10, 2026

Amazon FBA Reimbursements: Read the Reimbursement Report and Find Lost Inventory

How Amazon FBA reimbursements work, what the FBA reimbursement report shows, its reason codes, and how to find lost inventory Amazon has not paid for yet.

FBA reimbursements are one of the easiest sources of recovered revenue for Amazon sellers — and one of the most consistently missed. Amazon does reimburse you for inventory it loses, damages or fails to find, but the process is reactive: you are expected to notice the loss yourself and request the reimbursement within a window.

This guide breaks down what to track and how to recover what you are owed.


TL;DR: FBA reimbursements cover lost inventory in warehouses, damaged units, customer refunds where the unit never made it back to your stock, units removed but never returned, and shipment receiving discrepancies. Each has its own data trail in SP-API and Settlement reports. Amazon also publishes what it has already paid in the FBA reimbursement report, so the job is to compare what moved against what was paid, and claim the gap in time.

The five categories of reimbursable events

Lost in warehouse

Inventory you sent to FBA that never showed up in your available stock. Caught by reconciling inbound shipments against received quantities.

Damaged in warehouse

Inventory damaged by Amazon’s own warehouse handling. Reported in the Inventory Ledger report as a warehouse-damaged adjustment.

Customer return processing errors

Returns where Amazon refunded the customer but never restocked the unit, or restocked it as defective when it was returned in good condition.

Removal order discrepancies

Units you ordered removed from FBA that never arrived at your destination, or arrived in lower quantity than removed.

Shipment receiving discrepancies

Inbound shipments where the received quantity is lower than what you sent (inbound loss).


The FBA reimbursement report

Before hunting for losses, read what Amazon has already paid. The FBA reimbursement report lists every reimbursement with its date and approval date, the SKU, FNSKU and ASIN, the order ID where there is one, a case ID when the payment came out of a case, the amount per unit and in total, and the currency. Each row also says whether Amazon paid in cash, in replacement inventory, or both.

The reason column is the part to learn:

  • Lost_Warehouse and Damaged_Warehouse: units lost or damaged inside a fulfillment center.
  • Lost_Inbound: units missing from an inbound shipment.
  • Lost_Outbound: units lost after they left the fulfillment center.
  • CustomerReturn: a refunded order where the unit was not returned to your stock.
  • FeeCorrection and GeneralAdjustment: fees charged in error and other corrections.
  • Reimbursement_Reversal and Payment_Retraction: money taken back, usually because a lost unit was found or a returned item arrived after all. These rows point to the original reimbursement, so you can net them off.

A reversal is not a mistake in the report. It is why totals should be netted per original reimbursement before you decide that a loss is still open.


Where the data lives

  • Inventory Ledger report (it replaced the old Inventory Adjustments report) — records every adjustment Amazon makes to your inventory, including “lost,” “damaged,” “found” events.
  • Inbound Shipment reports — quantities sent vs received per shipment.
  • FBA Returns reports — customer returns and dispositions.
  • Removal Order reports — quantities removed and their disposition.
  • FBA reimbursement report — what Amazon has already paid, and why.
  • Settlement reports — reimbursements credited to your account.

None of these alone gives you the full picture. The reconciliation is the value.


What systematic tracking looks like

For each SKU, track:

  • Total units sent inbound (from inbound shipment reports).
  • Total units received (from same reports, post-receiving).
  • Total units sold (from order reports).
  • Total units returned and restocked (from returns reports).
  • Total units removed (from removal orders).
  • Current on-hand inventory (from inventory snapshots).

Math: Sent - Received = Inbound Loss. Received - Sold + Returned - Removed - On-Hand = FBA Loss.

Discrepancies, minus what the reimbursement report shows as already paid, become reimbursement claims.


The claim window

Amazon allows reimbursement claims only within a short window: since late 2024, about 60 days for most warehouse and inbound losses, and Amazon now reimburses many warehouse losses automatically. Past that window, you cannot recover. This is why ongoing reconciliation matters — catching losses in the first weeks is much easier than months later.


How to file claims efficiently

  • Identify the discrepancy with specific shipment IDs, removal IDs or transaction references.
  • Submit through Seller Central case management with documentation.
  • Track case status — some are auto-approved, some require back-and-forth.
  • Reconcile reimbursements received against expected amounts.

Several third-party services file claims for a share of what they recover. Doing it in-house works too once the reports above sit in one place: the analysis is a query, and only the filing stays manual.


Common patterns to watch

  • Inbound discrepancy spikes after major shipments. Often warehouse-side errors that resolve later — wait 30 days before claiming.
  • Customer returns missing restock. Amazon refunded but did not restock the unit. Common after holiday returns season. Our post on Amazon returns vs refunds explains why refunds and returns drift apart in the first place.
  • Removal orders short on arrival. Compare what you sent vs what your destination warehouse received.
  • Lost-and-found events. Amazon sometimes finds units it lost weeks later. Track adjustments both ways.

The bottom line

FBA reimbursements are recovered revenue sitting in your data, waiting to be reconciled. Losses go unclaimed because the data work is tedious and the window is short, not because they are hard to prove.

DataDoe’s Amazon data layer holds the FBA reimbursement report next to the inventory ledger, inbound shipments, removal orders, returns and settlements. Connect it to Claude or another AI client and ask one question, for example "which SKUs lost units in the last 60 days that Amazon has not reimbursed yet?", and your AI does the comparison. Filing the case stays with you, in Seller Central.

Questions people ask

What is the FBA reimbursement report?

Amazon's record of every reimbursement it has paid you for FBA inventory: lost or damaged units, inbound losses, customer returns that never came back and fee corrections, each with a reason, an amount and whether it was paid in cash or inventory.

How long do I have to file a reimbursement claim?

Since late 2024, about 60 days for most warehouse and inbound losses. Amazon also reimburses many warehouse losses on its own, which is why the reimbursement report should be checked before filing.

Why did Amazon take a reimbursement back?

Usually because the unit was found or the customer's return arrived after the payment. The reversal row points to the original reimbursement.

Can DataDoe file claims for me?

No. DataDoe reads the reports and your AI can list the gaps worth a case, but cases are opened in Seller Central.

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