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In the Amazon Inventory Ledger, reason code M means misplaced and E means damaged by Amazon while sellable. Those are the claimable lines when the Unreconciled Quantity stays above zero. You have 60 days from the day Amazon records the loss. Codes H, K, U, 6 and 7 are rarely paid in full.
Read more: Amazon Inventory Ledger Reason Codes: Which Lost and Damaged Units You Can Claimpost
Since March 31, 2025, Amazon reimburses lost and damaged FBA inventory at your sourcing cost, without shipping or duties, or at its own estimate when no cost is on file. Customer-return claims are still paid at the sale price minus fees. Enter your cost with an invoice and dispute a low payout within 60 days.
Read more: Amazon Lost Inventory Reimbursement: Why the Payout Is Below Your Cost and How to Dispute Itpost
If WFS receives fewer units than you shipped, you can open an investigation between day 10 and day 50 after delivery, once the shipping plan is Completed. Walmart asks for proof of delivery or a signed BOL, pays confirmed losses at average selling price, and accepts no appeals.
Read more: WFS Received Fewer Units Than You Shipped: How to File a Walmart Inbound Investigationpost
WFS storage costs $0.75 per cubic foot per month, and from October to December items stored over 30 days pay $1.50 more. Since June 30, 2026, inventory held 366–450 days is charged $2.25 per cubic foot per month, and over 450 days $7.50, counted from the date Walmart received it.
Read more: Walmart WFS Storage Fees in 2026: Long-Term Fees and the Q4 Surchargepost
From October 15, 2026 to January 14, 2027, Amazon adds a holiday peak fulfillment fee averaging $0.32 per unit, with the 3.5% fuel and logistics surcharge (in place since April 17, 2026) on top. The low-inventory-level fee applies when both 30-day and 90-day days of supply fall below 28 days.
Read more: Amazon FBA Fees for Holiday 2026: Peak Fee, Fuel Surcharge and Low-Inventory Fee