It's a tool that audits every Seller Central report Amazon publishes — Settlement, Inventory Adjustments, FBA Returns, Removal Orders, FBA Fee Audits — and surfaces the cases where Amazon owes you money. Lost inbound units, warehouse-damaged stock, refunds where the unit never came back, and FBA fees overcharged because the measured weight or dimensions were wrong. The eligible case list lives inside your live P&L and your refund tracker, not in a separate spreadsheet.
Industry data suggests 1-3% of annual FBA revenue is recoverable through reimbursement claims, with most sellers leaving it on the table. Amazon allows claims for up to 18 months for inventory issues. The number you can recover compounds the longer you wait to audit — older eligible cases expire silently.
The Owed Reimbursement formula
Owed Reimbursement = Lost inventory at COGS + Warehouse damage at sale price + Uncredited returns at sale price + Overcharged FBA fee delta + Removal discrepancies
Nova calculates this per case, per SKU, per marketplace. The case list lands in your product performance dashboard with eligibility deadlines so you file before the 18-month window closes.