- FBA inventory is split across operational states; total inventory can look healthy while the sellable quantity is low or unavailable.
- Stranded stock is usually an offer/listing problem, unfulfillable stock is a condition/disposition problem, and reserved/inbound stock needs status and timing investigation.
- Before removing inventory, check whether a reimbursement, reconciliation or listing repair path applies to the specific issue.
- Amazon’s inventory reports provide separate views for Inventory Health, Inventory Age, Stranded, Reserved, FBA Inventory and Inbound Performance—use the report that matches the problem.
1. First identify the inventory state—not just the unit count
When sellers say “Amazon has my stock but I cannot sell it,” the cause can be stranded inventory, reserved units, unfulfillable stock, inbound receiving, transfer processing, a listing restriction or another state. Each requires a different investigation.
Start with Manage FBA Inventory and the relevant report rather than adding all unit counts together. Amazon provides dedicated Inventory Health, Inventory Age, Stranded Inventory, Reserved Inventory, Amazon-Fulfilled Inventory, Inbound Performance and related reports for this reason.
2. Stranded inventory: stock exists but the offer is not buyable
Stranded inventory means FBA units are not connected to an active sellable offer. The cause can involve listing status, pricing, product data, account restrictions or other offer problems. Seller Central normally shows a reason and a fix path.
Repair the underlying offer/listing problem first where possible. Creating another SKU or removal order without understanding why the inventory became stranded can create duplicate catalogue issues or unnecessary cost.
3. Reserved inventory: understand why units are temporarily unavailable
Reserved units can be tied to customer orders, fulfilment-centre processing or transfers. A reserved quantity is not automatically lost inventory. Review the subtype/status and how long units have remained in that state.
If the reservation is unusually old or inconsistent with known orders/processing, gather transaction/shipment evidence before escalating. Do not count reserved units as immediately sellable when forecasting short-term availability.
4. Unfulfillable inventory: investigate condition and disposition
Units can become unfulfillable because of damage, customer returns or other condition problems. Review the reason code/status and determine whether Amazon is responsible, whether reimbursement rules may apply, and what removal/disposal options are available.
Do not automatically create a removal order before checking possible reimbursement or reconciliation paths. Once inventory is removed or disposed, evidence can become harder to reconstruct.
5. Inbound shipment delays and receiving discrepancies
Inbound inventory can take time to arrive, check in and become available. Compare shipment status, carrier delivery evidence, received quantities and Amazon’s reconciliation/eligibility timing before raising a case.
If a shipment shows a quantity mismatch, preserve box/packing records, carrier proof and the shipment plan. For a material unresolved difference, use the shipment reconciliation process when it becomes eligible rather than opening repetitive cases too early.
6. Excess and aged inventory: high stock can be a problem too
Amazon’s Inventory Health and Inventory Age reports can show excess inventory, age and weeks of cover. Products with weak sell-through can create storage and ageing exposure even if the account has no stock-out risk.
Before sending more stock, compare sellable units and inbound quantities with current demand. For slow products, consider merchandising, pricing, advertising, removal or other available inventory actions based on margin and current programme rules.
7. Low-stock and stock-out risk
A low sellable quantity should be evaluated against average daily sales and the complete replenishment lead time. A product with 40 units can be healthy at one sale per day and critical at ten sales per day.
Coordinate advertising and promotions with stock cover. Increasing visibility while inventory cannot support the demand can accelerate a stock-out and make later performance comparisons misleading.
8. Inventory appears missing: reconcile movements before assuming loss
FBA inventory moves through receipts, customer orders, returns, transfers, adjustments, damage and reimbursements. Use the Inventory Ledger and reimbursement-related reports where applicable to trace the movement rather than comparing only today’s stock with the quantity originally sent.
If a loss/damage event appears unresolved, check the current reimbursement policy and claim/reconciliation eligibility. The existence of an adjustment does not automatically mean Amazon still owes reimbursement; the related reimbursement or reversal also needs to be checked.
9. Use the correct report for the question
Inventory Health helps with sales, sellable/unsellable stock, age and weeks of cover. Stranded and Reserved reports help with those specific states. Inbound Performance supports shipment-level investigation. Inventory Ledger is useful for tracing inventory events over time.
Do not export every report and then try to merge fields blindly. Start with the operational question and use the minimum report set that can answer it.
10. Build an action queue rather than watching dashboards
Classify ASINs into actions such as Replenish, Repair listing, Investigate reserved, Investigate unfulfillable/reimbursement, Hold, Reduce excess or Monitor inbound. Assign an owner and review date.
This turns FBA inventory management into a controlled workflow. A dashboard can show a problem, but the business still needs a decision, evidence and follow-up until the status is resolved.
FBA inventory troubleshooting table
| Status / symptom | What it usually means | First checks |
|---|---|---|
| Stranded | FBA units are not connected to a buyable offer | Reason shown by Amazon; listing/offer/pricing/account issue; repair path |
| Reserved | Units temporarily unavailable for orders/FC processing/transfers | Reservation subtype, age, related order/processing status |
| Unfulfillable | Units are not sellable due to condition/disposition | Reason code, responsibility, reimbursement possibility, removal/disposal |
| Inbound delayed/mismatch | Shipment has not fully become sellable | Carrier delivery, receiving status, shipment reconciliation eligibility, box evidence |
| Excess/aged | Stock cover materially exceeds current sell-through | Inventory Health/Age, weeks of cover, storage exposure, demand plan |
| Low stock | Sellable inventory may not survive replenishment lead time | Daily sales, lead time, safety stock, reliable inbound quantity |
Frequently asked questions
What is stranded FBA inventory?
FBA units that cannot currently be sold because the inventory is not connected to an active buyable offer. Review the reason shown by Amazon and repair the underlying listing/offer issue where possible.
Does reserved inventory mean Amazon lost my stock?
No. Reserved units can relate to customer orders, transfers or fulfilment-centre processing. Investigate the reservation subtype and age before treating it as a loss.
What should I do with unfulfillable inventory?
Check the condition/reason and whether a reimbursement or investigation route applies before choosing removal or disposal. The appropriate action depends on why the unit became unfulfillable.
Which report shows aged or excess FBA stock?
Amazon provides Inventory Health and Inventory Age views/reports, among other inventory reports. Use the current report interface for the marketplace/account.
Why can total FBA inventory be high while the ASIN is close to stock-out?
Because total units may include reserved, inbound, stranded or unfulfillable stock. Forecast availability from sellable stock plus realistically timed inbound inventory, not every state combined.
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