Getting inventory accepted by Amazon FBA is not a single rule — it is a chain of checkpoints. Your product has to be FBA-eligible, every unit needs a scannable barcode, each item has to be prepped for its type, boxes and pallets must meet strict size and weight limits, every carton needs the right labels, and your shipping plan has to match what is physically in the boxes. If any link in that chain fails, your shipment can be refused at the dock, hit with unplanned prep or labeling fees, delayed for weeks, or — in repeat cases — put your shipping privileges at risk.
This is the requirements-and-compliance companion to the main pillar guide, How to Ship from China to Amazon FBA. It walks through every requirement in roughly the order Amazon checks them, flags the mistakes that most often get shipments rejected, and covers what is changing in 2026.
Amazon updates these rules regularly. Every number below (box limits, weights, label sizes, deadlines) should be confirmed on the current Seller Central page before you ship — treat this guide as the map, not the final measurement.
1. TL;DR — the FBA requirements checklist
Before you book a shipment, confirm all of the following:
- [ ] Product is FBA-eligible — not prohibited, restricted, or a category your freight method cannot carry.
- [ ] Every unit has a scannable barcode — FNSKU or an eligible manufacturer barcode; old barcodes covered.
- [ ] Each unit is prepped for its type — poly-bagged, bubble-wrapped, sold-as-set, case-packed, etc.
- [ ] Boxes meet current size and weight limits — 6 rigid sides, within Amazon’s box dimension and weight caps (details in §8), ≥ 2 in cushioning, with the correct Team Lift / Mechanical Lift mark on heavy boxes.
- [ ] Every carton is labeled — FBA box ID label + carrier label, flat, not on a seam; pallets get 4 labels.
- [ ] Box content is declared — what is in each box and how many, via Send to Amazon.
- [ ] Delivery deadline is realistic — shipments left open too long can be auto-closed (non-US origin commonly ~75 days); confirm the current window before booking.
- [ ] You keep proof of shipment — BOL, POD, packing list, invoice.
2. Top reasons FBA shipments get rejected
Most sellers follow the packaging rules and still get burned — usually on the same handful of issues. Fix these first.
| Rejection / fee trigger | What actually happens | How to avoid it |
|---|---|---|
| Label problems (most common) | FNSKU smudged, wrinkled or unscannable; old UPC/EAN not covered; box label on a seam, edge or under tape; label hidden by the carrier label or stretch wrap; FNSKU does not match the plan; mixed units mislabeled. | Print sharp labels, place flat on a clean face, cover old barcodes, and verify the FNSKU matches the shipment plan. |
| Non-compliant packaging | Crushed, damp or weak boxes; used or open-top cartons; banned fill (shredded paper, foam peanuts, plastic strapping, staples); fragile / liquid / powder under-protected. | New 6-sided rigid boxes, secure taping, approved cushioning, extra protection for fragile and leak-prone items. |
| Pallet / container issues (high on LTL / trucking) | Broken pallets; wood not ISPM-15 treated; cartons overhanging the pallet; over-height; non-clear (black/opaque) stretch wrap; over-stuffed containers. | ISPM-15 wood, no overhang, height within limit, clear wrap, 4 pallet labels. |
| Box content / quantity mismatch | Physical count does not match the declared plan; over-pack, short-pack, or wrong SKU; triggers reconciliation / research, delays or losses. | Declare exact box content in Send to Amazon; do not mix SKUs across boxes without labeling. |
| Over-weight / over-size, unmarked | Over 50 lb without Team Lift; over 100 lb without Mechanical Lift; box exceeds 36 in on the longest side or 25 in on another side. | Re-pack to limits or add the correct lift label; split oversized loads. |
2a. The pitfalls sellers don’t see coming (field experience)
These are operational, real-world situations reported by sellers and corroborated on Amazon seller forums — not written FBA rules. Plan for them anyway.
- The warehouse is full and refuses your delivery. When an FC is over capacity it can reject appointments or turn trucks away — even when your goods are fully compliant — and some FCs accept only LTL pallet deliveries, refusing parcel (FedEx/UPS) during these periods. Amazon may also split one plan across several FCs, so one box can be rejected while another is still delivering.
- Customs inspection eats your delivery window. An ocean shipment held for inspection can blow past the window and be refused; broker paperwork that does not match the goods is a frequent cause of long holds.
- A rejection sets off a chain of cost — and you must close it out. The usual fix is to recreate the shipment, re-route it to the forwarder’s overseas warehouse, re-label the outer box marks, and send it to a different FC (re-labeling cost scales with carton count). Also cancel the original shipment (Send to Amazon → Cancel shipment): leaving a rejected or abandoned shipment open hurts your inbound performance, and many sellers do not know it can be cancelled.
- Forwarder games. Some forwarders have no real trucking/LTL capability, give fake tracking numbers, or try to bill freight twice — choosing the wrong forwarder is itself a risk.
3. Why these requirements matter — and what non-compliance costs
Compliance is really about two things: avoiding fees and avoiding delays. A non-compliant shipment can mean refusal and return, unplanned prep or labeling fees, slower check-in, or repeated-offense penalties.
Amazon’s published FBA Label Service fee has been about $0.55 per unit, and unplanned-prep and inbound-defect fees add up fast across a large shipment — on top of the lost sales while inventory sits unavailable — fees that all feed into your landed cost. (Note: the per-unit FBA Label Service is a US service being phased out from 2026 — see §10.)
4. Step 1 — Is your product FBA-eligible?
Before anything else, confirm Amazon will accept your product and that your freight method can carry it. Prohibited and restricted categories, plus items that need approval, are listed in Seller Central. Note that eligibility for FBA and eligibility for ocean freight are two different filters — a product Amazon allows may still be un-shippable by sea.
Commonly restricted or hard-to-carry from China by sea: lithium batteries and power banks, pure batteries, liquids, powders, aerosols and flammables, cosmetics, e-cigarettes, toner and ink cartridges, paints, laser products, controlled knives, genuine leather, and any counterfeit / IP-infringing / anti-dumping goods. Products that require FDA certification are typically refused by most China-based sea-freight forwarders (items that only need an FDA filing may be fine). If your product falls in any of these groups, confirm dangerous-goods capability and routing before you book — see §6a.
5. Barcode requirements
- Every unit needs one scannable barcode. You either use the manufacturer barcode (UPC/EAN/GTIN) where eligible, or an Amazon FNSKU label.
- If your product has no GTIN, you can apply for a GTIN exemption.
- Cover any old or extra barcodes so only one scans.
- Amazon will only relabel for you in limited cases — and the US paid single-unit labeling service is being phased out (see §10).
China direct-ship trap: factories often print ASIN or UPC instead of the FNSKU, or place the label in the wrong spot — which can spoil an entire shipment. Send the FNSKU file and exact label position to the factory or prep center, and double-check both yourself before mass production.
6. Packaging requirements by product type
Amazon preps by product form. The high-frequency rules:
- Loose / boxed units — sold and shipped as one unit; sets must be marked so they are not separated.
- Poly-bagged items — bag ≥ 1.5 mil, transparent, fully sealed; a suffocation warning is required if any opening is 5 in or larger; the barcode must scan through or be on the outside; the bag should not extend more than 3 in beyond the product; adult products use opaque/black bags.
- Fragile items — pass a drop test, bubble-wrap and/or over-box so units do not break in transit.
- Sets / bundles — label ‘Sold as set / Do not separate’, use a single FNSKU for the bundle, and cover the inner units’ barcodes.
- Case-packed — all boxes identical in SKU and quantity, matching the plan.
Allowed cushioning: bubble wrap, kraft/air pillows, full foam sheets. Banned: packing peanuts, shredded paper, crinkle wrap, styrofoam, loose foam.
6a. Dangerous goods, batteries & liquids
Lithium batteries (standalone UN3480, packed-with or contained-in UN3481), products containing liquids, aerosols and flammables are dangerous goods (DG). They must meet DG transport and packaging rules — UN38.3 test for batteries, watt-hour limits, lithium battery marks, double-sealed leak protection for liquids — and Amazon only accepts specific DG categories. Some products also require an SDS or dangerous-goods packaging certificate.
In practice, many of the restricted categories listed under eligibility above cannot be carried by ocean freight and are refused by most China forwarders. Confirm DG capability and routing before you book; do not assume a standard FBA forwarder can move them.
Amazon spells out the DG transport, UN38.3 and labeling rules in its lithium-battery requirements and battery prep guidance.
7. Date-sensitive / expiration products
For supplements, food, cosmetics and other dated goods:
- Units generally need more than 90 days of remaining shelf life at check-in (very short-dated stock can be disposed of and not returned).
- The expiration date must be printed on the master carton in ~36-point font and on each individual unit.
- The FNSKU must not cover the expiration date.
- Use a clear format such as MM-DD-YYYY or MM-YYYY.
8. Box & packing requirements
- Box: 6-sided, rigid corrugated, flaps intact; longest side ≤ 36 in (raised from 25 in on 2025-06-20), the other two sides ≤ 25 in, ≤ 50 lb; a box may exceed 50 lb only when it contains a single unit that itself weighs more than 50 lb. Minimum box size around 6×4×1 in.
- Cushioning: ≥ 2 in between units and box walls; contents must not shift when shaken.
- Lift labels: Team Lift over 50 lb, Mechanical Lift over 100 lb.
- Box size/weight changes effective 2025-06-20 — confirm current figures on Seller Central’s shipping and routing requirements and product packaging requirements.
9. Labeling & marking requirements
- Each carton needs the FBA box ID label plus the carrier label.
- Standard label size ~ 3⅓ × 4 in (thermal 4 × 6 in); place flat, avoid seams/edges; do not cover with tape.
- Pallets: one label on each of the 4 sides; non-reflective; do not photocopy or reuse labels.
- Country of origin: US imports require goods/packaging/cartons to be marked with country of origin (e.g. ‘Made in China’), legible, conspicuous and permanent. Unclear marking can stall customs and indirectly hurt your delivery window. (CBP requirement; no official font-size number — keep it clearly legible.)
10. What’s changing in 2026
1. FBA prep & single-unit labeling service ends (US only) — effective 2026-01-01. Amazon stops providing paid prep and per-unit labeling for US FBA inventory (including direct-to-FBA and inventory via AWD / AGL / Amazon SEND / Supply Chain Portal). Responsibility shifts to the seller / forwarder. Grace period: shipments created before 2026-01-01 keep the service even if they arrive later. After that, inventory that arrives un-prepped / unlabeled and is damaged or untrackable will not be reimbursed. 2. Commingling ends + manufacturer-barcode eligibility tightens — effective 2026-03-31. More sellers will be required to use Amazon FNSKU labels instead of manufacturer barcodes. This is a separate policy from the prep removal but lands in the same window — do not confuse the two.
11. Inbound shipping plan, placement, methods & delivery window
- Box content is mandatory — declare what is in each box and how many via Send to Amazon before shipping.
- Method: SPD (small-parcel) vs LTL/FTL (palletized); for the deeper sea-vs-air mode decision, weigh cost against speed. Pallet shipments face the highest rejection rate, so palletizing has to be exact.
- Placement: Amazon defaults to distributed placement (splitting your shipment across multiple FCs). The Inventory Placement Service consolidates to fewer FCs for a per-unit fee. A single direct shipment split across 3 FCs can spike last-mile cost, so decide consolidate-vs-distribute up front — the per-unit placement fee is a cost trade-off you weigh separately, not a compliance rule.
- Your own restock / capacity limits: Amazon caps how much inventory you can send in via restock and capacity limits (FBA Capacity Monitor). Check your available capacity before you book — exceeding it means part of the plan can’t be created. This is your account-level limit, separate from the FC-level capacity refusals described above.
- Delivery window & deadline: treat timing as a compliance deadline, not just logistics. Two separate clocks run: (1) when you create the shipment you pick a delivery window (a set date range) for the receiving appointment, and (2) a shipment left open too long without being received can be auto-closed/cancelled — non-US-origin shipments are commonly reported to close after roughly 75 days. Treat any specific day-count as indicative and confirm the current window in Send to Amazon / Seller Central. With ocean transit plus production lead time this window is tight, so build plan-creation timing into your booking, and remember that even after delivery, receiving lag eats into when stock goes live.
12. If you ship directly from China
Keep this short — most planning lives in the Pillar and forwarder guides.
- Who is the IOR: Amazon generally does not act as importer of record, so a direct-from-China shipment needs its own US import/customs party (IOR / consignee) arranged in advance. This is a definitional reminder only, not legal or tax advice — confirm the import setup with a qualified customs broker.
- Get FNSKU sign-off in writing: the factory-label trap in §5 bites hardest on direct-from-China shipments — have the factory confirm the FNSKU and its exact placement in writing before mass production, since fixing a mislabeled batch from overseas is slow and costly.
- First shipment: some sellers route the first batch through a prep / inspection warehouse to catch damage and labeling errors before it reaches FBA.
- Keep your shipment documents: inventory is sometimes scanned in correctly and then units ‘disappear’ days later. To claim you need the BOL, POD, packing list and invoice, and reconciliation has a time limit — keep the full set and open a case promptly (invoices can be harder to reproduce on a direct-from-China shipment, so this matters even more here).
13. The bottom line
Before each shipment, do three things: lock the FNSKU and packaging with your factory, build enough buffer that an FC capacity issue or a customs hold won’t blow the delivery window, and re-confirm the current Seller Central figures rather than trusting any single guide — and hold on to your shipment paperwork in case you need to file a claim. Meet the Amazon FBA shipping requirements consistently and the chain holds; miss one link and the whole shipment is at risk.
FAQ
Can I ship to FBA myself, or do I need a freight forwarder?
You can do it yourself in theory, but a China-to-FBA shipment chains together export clearance, a US importer of record / consignee, customs, and a booked FBA delivery appointment — so most sellers use a forwarder for at least the international and customs legs and run only the Seller Central side themselves.
Do FBA and FBM have the same shipping requirements?
No. The barcode, prep, box and pallet, labeling and box-content rules on this page apply to FBA — inventory you send into Amazon’s fulfillment centers. With FBM you ship each order to the customer yourself and follow your carrier’s rules, not Amazon’s inbound requirements.
FNSKU or manufacturer barcode — which do I use?
Use the manufacturer barcode only if your product is eligible for it; otherwise label every unit with an Amazon FNSKU. When in doubt, default to FNSKU — and from 2026-03-31 more sellers will be required to use it as commingling ends. Whichever you use, cover any old barcode so only one scans.
Should I send my first order straight to FBA, or through a prep center first?
For a first order, many sellers route it through a prep or inspection warehouse first — it catches damage, wrong FNSKUs and labeling errors before they reach an FC, where a rejected shipment is expensive and slow to fix from overseas. Established restocks usually go direct.
How long do I have before an open shipment gets auto-closed?
Amazon closes shipments that stay open too long without being received; sellers shipping from outside the US commonly report a window of about 75 days. Treat any day-count as indicative, confirm the current limit in Send to Amazon, and don’t let ocean transit plus prep eat the whole window.
