All 56 checks, published.
Most services in this category advertise a number and stop there. Here is the actual list, by name, so you can judge it — or run it yourself.
Why we publish this
Three reasons, in ascending order of honesty.
It lets you evaluate us properly. "We check 50+ error types" is unfalsifiable. A named list is not.
It lets you check whether your current service is finding these. Take this page to them and ask. If they are missing a whole category — and the fee section is where they usually are — you will know within one email.
And frankly, the list is not the moat. Knowing that dimension errors exist is the easy part. Detecting them reliably across a live catalog, documenting them well enough that Amazon pays, filing inside sixty days, appealing the wrong denials, and getting the measurement corrected so it stops — that is the work. We are comfortable showing you the map.
What we check, by category
Every check runs daily against your account, with each finding carrying the date its claim window closes.
Inbound shipments — 8 checks
Units leave your warehouse and do not all arrive. This is the leak sellers most often assume Amazon reconciles on its own.
- Units shipped versus units received, per shipment
- Shipments closed while still showing a receiving discrepancy
- Units received against the wrong SKU inside your own catalog
- Units marked lost in transit between your facility and the fulfillment center
- Over-receipts that later reverse and are billed back to you
- Split shipments where only part of the plan was reconciled
- Carrier-damaged units received but never adjusted
- Shipments stuck in receiving well beyond normal processing time
Warehouse inventory — 9 checks
Units that entered a fulfillment center and never came out as a sale, a return, or a documented removal.
- Inventory ledger adjustments with no matching reimbursement
- Units damaged inside the fulfillment center
- Units damaged in transfer between fulfillment centers
- Units disposed of without a disposal instruction from you
- Units disposed of after you requested a removal instead
- Found-inventory reversals applied against earlier reimbursements
- Units lost during an FC transfer and never recovered
- Reimbursements issued in units rather than cash where cash was owed
- Reimbursed units later restocked without the reimbursement reversing correctly
Returns and refunds — 11 checks
The highest-volume leak in most accounts, and the one that looks most normal on a statement.
- Customer refunded, unit never physically returned
- Return window elapsed with no unit received and no reimbursement
- Unit returned unsellable but your account still debited in full
- Refund amount exceeding what the customer actually paid
- The same return processed and refunded twice
- Returns received but never restocked to sellable inventory
- Restocking fees not applied where policy allowed them
- Refunds issued after the eligible return period
- Returnless refunds granted on items above the returnless threshold
- Chargebacks and A-to-z claims overlapping with an ordinary refund
- SAFE-T eligible losses on seller-fulfilled orders
Fee overcharges — 16 checks
Our lead category. These refund at full dollar value and, uncorrected, they recur on every single order.
- Product dimensions on file not matching the actual product
- Unit weight on file not matching the actual product
- Size tier assignment inconsistent with recorded dimensions
- Oversize classification applied to a standard-size unit
- Dimensional weight applied where unit weight should govern
- Fulfillment fee charged at a tier above the recorded measurement
- Referral fee charged at the wrong category rate
- Referral fee calculated on shipping or tax where it should not be
- Low-price FBA rate not applied to eligible units
- Apparel and non-apparel rates applied to the wrong ASINs
- Dangerous goods surcharge applied to non-hazmat units
- Prep and labeling fees charged for units that arrived prepped
- Unplanned prep service fees on compliant shipments
- Fulfillment fees charged on cancelled orders
- Multi-channel fulfillment fees billed at the wrong tier
- Fee changes applied retroactively before their effective date
Storage and surcharges — 7 checks
Billed monthly, rarely audited, and calculated from the same dimension record that causes fee errors.
- Monthly storage billed on incorrect cubic dimensions
- Storage charged on units already lost or disposed of
- Aged inventory surcharge applied to units that had already sold
- Aged inventory surcharge dates inconsistent with the inventory ledger
- Storage utilization surcharge miscalculated against your actual footprint
- Long-term storage fees on inventory scheduled for removal
- Storage billed during a period the units were in transfer
Removals and disposals — 5 checks
You pay to get inventory back, and then it does not come back.
- Removal orders paid for but never delivered
- Removal units delivered short of the quantity requested
- Removal fees billed at the wrong weight tier
- Units disposed of when removal was requested
- Removal orders cancelled by Amazon but still billed
What this list does not tell you
- Which findings are worth filing. A detected discrepancy is not automatically a payable claim. Confidence scoring and evidence quality decide that, and filing everything is how accounts get a reputation for noise. We publish that side too.
- How close each finding is to expiring. Every one carries a deadline. Working the queue by expiry rather than by value is most of the discipline.
- Whether the underlying cause is fixable. A fee overcharge you refund once is worth far less than the same one corrected at the source. That is the prevention side.
New checks get added as Amazon adds new ways to be wrong. This page is updated when they do.
Find out what Amazon owes you.
A free audit takes ten minutes to set up. You get a findings report with real dollar figures, and no obligation to do anything with it.