All 56 checks, published.

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 it is only half of what you would want to see. This page is what we check; the sample findings report is what it looks like when the checks come back — SKU by SKU, with the evidence, the expiry clock and the findings we refuse to file.

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.

Operating rules

The rules the clock runs on

These are the constraints every finding is worked under. Get any of them wrong and a valid claim pays nothing.

• Every claim type has its own clock, and most are now short. Since Amazon’s late-2024 policy change, most inventory reimbursement claims must be filed within roughly 60 days of the event; fee and storage overcharges run about 90 days from the charge date; and inbound shipment shortages are the long one, claimable once Amazon marks the shipment eligible and until nine months after it was created. Findings are queued by expiry, not by value, because an expired claim is worth exactly zero.
• 60 days to produce cost documentation after filing. Miss it and Amazon substitutes its own estimate, which is reliably lower than your invoice. This is why we collect cost docs before filing, not after.
• Recovery is valued at your manufacturing cost, not sale price. Amazon changed this on 31 March 2025. Services still quoting recovery at sale price are overstating it two to four times. Every figure we show you is cost-based.
• Storage and fulfillment keep separate dimension records. Winning a fulfillment fee correction does not fix the storage record — we have seen items corrected on one and still billed wrong on the other, in both directions. We check and claim them separately.
• Every reimbursement is verified against Amazon's Reimbursements report. Amazon has "granted" reimbursements that restated an existing credit rather than paying new money, and paid credits with no notification at all. A case is not closed until the cash is confirmed.
• Stalled cases get escalated, never abandoned. Amazon's own turnaround standard is ten business days. Past that, we escalate with evidence. We never close a stalled case — the original filing date is what anchors the claim window.
• Measurement-request quotas are respected. Amazon caps remeasurement requests per account per month, and the cap varies by account (the current rate card and tier definitions are published in FBA fulfillment fees and product size tiers) — we record yours at onboarding and queue work against it rather than burning it on low-value tickets.

What this list does not tell you

• Which findings are worth filing. A detected discrepancy is not automatically a payable claim — here is how each one gets ranked.
• Which claims we refuse outright. 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.