How to Ship From Alibaba to Amazon FBA

The order of operations, since this is where sellers get stuck

Step one is not calling your supplier. It's building an FBA shipping plan inside Seller Central. That step generates the shipment ID and the destination fulfillment center address — sometimes more than one, since Amazon often splits a single shipment across several FCs by weight and region. Nothing ships anywhere until this plan exists.

• Build the shipping plan first. Amazon tells you where to send the goods; you don't choose a warehouse.
• Decide who clears customs. If your supplier quotes FOB, you're the importer of record and you, or your forwarder, handle the customs entry. If they quote a landed or DDP price, they may handle it — confirm this in writing before the goods move.
• Pick the route. Small orders often go by express courier straight to the FC. Larger orders usually move by air or sea freight to a forwarder, who clears customs and may also inspect and label before FBA.
• Get the right invoice. A commercial invoice, not a proforma invoice — the difference matters more than most new sellers expect.
• Apply FBA labels. Either your supplier does it (ask first; quality varies), a prep center does it, or you do it yourself before the shipment reaches Amazon.

Direct to the fulfillment center, or through a prep center first?

There are two real paths, and the argument most new sellers have with themselves is which one to use on the first order. Neither is wrong — they trade speed for a safety net.

A freight forwarder or prep center physically receives, inspects, and labels your inventory before it ever reaches Amazon. That's genuinely useful when a supplier is new and unproven. It's also an extra stop, an extra fee, and a day or two of added time. Shipping direct skips all of that — and skips the chance to catch a bad batch before Amazon has it.

A worked example: how box dimensions quietly become a fee problem

Here's where a shipping decision turns into a fee problem nobody notices. Say a supplier boxes a kitchen item at 18 x 14 x 10 inches, and it weighs 8 lbs actual. Multiply the dimensions: 18 × 14 × 10 = 2,520 cubic inches. Divide by 139, the standard dimensional-weight divisor, and you get roughly 18 lbs of dimensional weight — more than double the box's actual weight.

Amazon bills fulfillment fees on whichever number is higher, actual or dimensional. A product that should sit in a cheap-to-fulfill tier can get pushed into a higher one purely because of how it was boxed — before a single unit ever sells. It's one of the most common, and most invisible, fee misclassifications, because almost nobody checks the received box dimensions against the fee tier after the shipping plan is approved.

The fix isn't complicated: pull the actual dimensions Amazon recorded on receipt and check them against what the shipping plan assumed. If they don't match, the fee is usually wrong every month until someone looks.

The mistakes that sink a first shipment

Sending a proforma invoice instead of a commercial invoice. A proforma invoice is a quote. It carries no weight if a listing gets pulled into an authenticity review, or if a shipment is lost and you need to prove what it was worth. Ask for the commercial invoice before the goods ship, not after something has already gone wrong.

Sending the entire order on the first shipment. If quality drifts between the sample and the bulk run — which happens — a smaller first shipment limits how much of that risk sits inside Amazon's warehouse before you find out.

Treating a product-research tool as a shipping tool. Platforms built to surface demand and competition data before you order are genuinely good at that job. Getting the order through customs and onto an Amazon truck without a fee or invoice problem is a different job. Confusing the two is how sellers end up mid-shipment with a plan for neither.

Full Circle has managed more than $500M in revenue across 100+ brands, and in that work, a missing commercial invoice is one of the more common reasons a legitimate lost-shipment claim gets denied.

When it goes wrong: lost units, discrepancies, the wrong FC

Reconcile the quantity Amazon confirms receiving against the shipping plan quantity as a routine check, not a fire drill. Discrepancies between what you sent and what Amazon logs are common enough that they shouldn't come as a surprise.

If units are genuinely missing, file through Seller Central's shipment discrepancy or lost-inventory workflow and attach the commercial invoice as proof of value — not a screenshot of the Alibaba order page. If part of a shipment gets routed to an FC you didn't expect, that's normal; Amazon splits shipments by its own logic, and it's not a sign anything broke unless units actually go missing in transit.

If the real leak turns out to be in the ad account instead — a listing that stalled after a stockout, or spend still running against a SKU with no stock — that's not a warehouse problem, and it's worth sending to Dr. PPC instead.

Where Dr. Stock fits, and where it doesn't

Dr. Stock doesn't ship anything. A freight forwarder or a prep center physically receives, inspects, labels, and moves your inventory — that's their job, and a good one will save a new seller from most of the mistakes above. Dr. Stock works after the boxes land: catching a dimensional-weight misclassification before it costs a year of fee overpayment, timing a reorder before a stockout kills rank mid-campaign, and building a reimbursement case with the right invoice attached instead of the wrong one. It doesn't replace an ERP or a multichannel system either — it works the inventory-and-fee side those systems don't check for you. There's no published price; it's a demo, a first 30 days free, and pricing set on the call.