Every reviewed change to the fees, item policies and payout schedules behind ListMath. Official sources are checked automatically every week; pages that block automated checks are re-verified by hand each month.
41 eligibility answers where a mistake would cost a seller most (supplements, used cosmetics and fragrance, used electronics, Etsy's handmade and vintage rule, StockX's new-only rule, approval-only categories, furniture and books) were checked by hand against each marketplace's official policy pages. All 41 were confirmed; no data changed.
Fragrance is now unclear (Etsy prohibits flammable items but doesn't name perfume). Cosmetics, toys, kids' clothing and electronics are allowed with conditions: banned cosmetic ingredients, recall and choking or strangulation hazards, and no loose lithium-ion batteries.
When a marketplace's policy doesn't clearly say whether an item is allowed, the advisor now answers "unclear" (previously "check") with the policy link, and excludes that marketplace from rankings and picks instead of listing it for review. A wrong "not permitted" is safer for sellers than a wrong "permitted".
Books, topical products (cosmetics), fragrances, ingestible products (supplements), jewelry and watches, software (video games) and collectibles need Walmart's pre-approval. Apparel, children's products, electronics, home goods and art are allowed with category-specific requirements. Earlier answers had inferred these as allowed.
New 2027 non-peak FBA rate card with revised bulky and oversize size tiers, flat product and overhang handling fees, and low-price exclusions. Already in the data: calculations with a fulfillment_date on or after 2027-01-15 use it.
Prohibited and restricted items, condition rules, approval-only categories and standard payout timing for 20 item types, each from the platform's own policy pages. Used by POST /v1/advise.
Every fee rule was re-verified against each marketplace's published fee pages (fee schedule 2026.2). From now on, official sources are checked automatically every week; pages that block automated checks (currently eBay, Etsy and Depop) are re-verified by hand each month.
Holiday peak fulfillment fees apply to FBA orders shipped in this window; calculations pick them from fulfillment_date (default: today).