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Screen Amazon Fee Preview exports for dimension differences and size-tier boundary risks, then compare charged fees with seller-entered expected fees.
Seller Central → Reports → Fulfillment → Payments → Fee Preview. Enter seller-measured dimensions and a verified expected fee for gap modeling.
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Upload your US Fee Preview or Fee & Economics report (Seller Central → Reports → Fulfillment), or explore the workflow with synthetic sample data.
Official Amazon US product size tiersUS dimensions and USD values only. Tier screening uses Amazon's US 2026 definitions and a 139 in³/lb divisor; bulky dimensional weight applies the published 2-inch minimum width and height. Fee gaps are calculated only from the charged fee and a seller-entered or synthetic sample expected fee. They do not prove a measurement error, reimbursement eligibility, or an amount owed. Confirm the live fee, program, price band, peak period, surcharge, and policy in Seller Central before acting.