How to Send Your First FBA Shipment in 2026, Step by Step

The boxes are already moving. Your supplier handed them to a carrier on Tuesday, tracking updates once a day, and Send to Amazon is open in a tab you have never used before.

Ten things happen between a purchase order and a sellable listing, and they happen in a fixed order. Some of them you can redo on a Tuesday afternoon for the price of a roll of tape. Others you can only redo by touching every unit a second time, and the workflow gives you no warning about which is which. Ask anyone who has spent a Sunday peeling stickers off a few hundred units.

Underneath all of it sit two rule changes from 2026. Amazon stopped prepping and item-labeling inbound US FBA units on January 1, and stickerless commingled inventory ended in the US store on March 31, which is why a reseller now applies an Amazon barcode to every unit. If you resell other people's brands, read what the end of commingling did to reseller catalogs before you build the plan.

Step 1. The listing exists before the units do

You cannot build a shipment plan around a product with no active FBA offer. The thing that travels is a SKU, not an ASIN, and everything downstream hangs off it: the barcode, the prep instructions, the quantity Amazon expects to see arrive.

The decision here is short. You are either creating a listing or matching one that already exists. Resellers match. Private label creates. Either way, give the SKU a name a stranger can read off a carton six months from now, because that string is how everyone handling the goods will refer to them. Before anything lands anywhere, clear two gates:

• Category and brand approval. Some categories and many brands require approval to sell, and the application usually wants supplier invoices in Amazon's format. Getting ungated after the pallet arrives is a bad way to spend a week.
• Dangerous goods classification. Converting an ASIN to FBA can flag it for review if the product contains a battery, a pressurized can, a magnet, alcohol, or a flammable liquid. Amazon asks for a safety data sheet, gives you a limited window to produce it, and can come back with a classification that restricts FBA for that ASIN. Find out while the goods are still at the supplier.

This is the only stage where a mistake costs an afternoon instead of a shipment, which is exactly why new sellers put it off. Then the ASIN turns out to be gated with freight already on a dock.

Step 2. The barcode decision, made once for hundreds of units

Every unit in a US fulfillment center is either wearing an Amazon barcode (FNSKU) or being tracked by its manufacturer barcode, and since March 31, 2026 the line between the two is clean. Brand owners in Brand Registry can stay on the manufacturer barcode. Everyone reselling somebody else's brand applies an FNSKU to every unit.

The trap for a first shipment is timing. The rule follows the date inventory arrives, not the date you built the plan, so a shipment created early and delivered late lands under the newer rule.

The decision at this step is mechanical: who prints the labels, on what stock, and where the label sits on the package. Get it wrong and somebody handles every unit a second time. Label stock, print quality, and placement are worth settling before you run off a few hundred stickers (see FBA labeling requirements, including what a scanner rejects at the receiving station).

Past the first sticker, the barcode choice stops being a choice. Relabeling is billed by the unit, and a few hundred units is a long evening.

Step 3. Who preps, and where the boxes physically sit

Amazon has not prepped or labeled US FBA inventory since January 1, 2026. The option is not in the workflow, and there is no paid version of it hiding behind a support case. The work belongs to one of three parties, and since a per-unit rate card puts a number on each operation, this is a comparison you can run on paper before anyone touches a carton:

• You. Reasonable for a small first shipment. The cost is your weekend plus a thermal printer, poly bags, and a scale a carrier will accept. Price that weekend honestly against prep cost per unit before you decide your own labor is free.
• Your supplier. Cheapest per unit if they already prep for Amazon. Risky on shipment number one, because nobody checks their work before Amazon does.
• A prep center. Receives the freight, counts it against your purchase order, preps and labels, then ships to whichever fulfillment centers Amazon names.

This step also sets the ship-from address in your plan, and Amazon uses that address to pick your destinations. If the boxes leave a warehouse in New Jersey while the plan says your apartment in Texas, you get routed to the wrong side of the country and pay freight to fix it.

The expensive version of this step is telling a supplier to ship straight to Amazon. Freight that bypasses a set of eyes leaves you with no independent count, no inspection, and no chance to catch a wrong barcode. A first shipment is the wrong one to send blind.

Step 4. What actually happens to a unit on the bench

Prep is a short list of physical operations, and which ones apply depends on the product, not on your preference:

• Poly bagging. Transparent bag, sealed, barcode readable through the film, and a suffocation warning once the bag opening passes a size threshold. Poly bagging requirements gives the exact wording, the minimum font size, the seam, and the scan test.
• Expiration dating. Anything with a date needs it printed on the outer package in an accepted format and still readable after you bag or bundle it. Covering the date with your own label is a classic first-shipment error.
• Sets and bundles. One barcode on the outside, a sold-as-set marking, every inner barcode covered. The rules change with how the set was assembled, so settle that before you build four hundred of them.
• Fragile and liquid items. The packaging has to survive a conveyor and a drop. Looking good on a shelf is a different goal.
• Cartons. One sturdy box, no branded shipper reused as an outer, no soft sides, no split corners. Weight and dimensions have to match what you enter in the plan.

Once a carton is sealed, weighed, and stacked, checking one unit inside it means opening the box, reweighing it, and printing a new box label. The bench is where you go slowly; the screen is where you can move fast.

Step 5. Building the plan: quantities, packing type, templates

Now you open Send to Amazon, select the SKUs, and enter quantities. Keep that first number small: every unit in a first shipment is a unit you cannot sell while you find out how long receiving takes.

The decision that matters most here is the packing type, because it describes what is physically inside each carton, and Amazon receives against that description.

Question	Case-packed	Individual units
What is in one box	One SKU, one condition, same count in every box	Mixed SKUs or mixed conditions in the same box
Receiving speed	Faster, because one scan represents a whole case	Slower, every unit is handled
Where it goes wrong	One box has a different count and the whole plan mismatches	Box contents entered from memory instead of from the pack list

Case-packed units are sold one at a time after Amazon breaks the case. A multipack is sold as a set, which makes it a separate listing with its own barcode.

What hardens when you confirm the plan is the packing template. Templates are saved and reused, so a wrong one does not fail once. It repeats itself on every replenishment until somebody notices.

Step 6. How many buildings your shipment gets split into

Amazon decides where your inventory should live and will usually propose splitting a shipment across several fulfillment centers. You can accept that split, or ask to send everything to fewer locations and pay a per-unit inbound placement fee for the privilege. That fee has been repriced more than once, and the only figure worth doing arithmetic with is the one your own placement options screen quotes for this shipment on the day you build it.

For a first shipment, take the split. Three parcel boxes going to three buildings is not a crisis, and on a test order the placement fee rarely earns back what it costs. Paying it starts to make sense later, once volume is steady enough that one destination saves real freight.

The split feels worse than it is for one reason mostly: destinations stop being negotiable the moment you approve the plan, so the placement options screen is the only place that choice ever exists.

Deleting a confirmed shipment to rebuild it with a better split is one of the faster ways for a new account to get into trouble. Boxes from deleted shipments can be refused when they show up anyway.

Step 7. Box contents and the labels on the outside

Amazon needs to know what is in each box before it arrives. You either type the contents box by box in the workflow, or you use the 2D barcode option, where each carton carries a single barcode encoding its own contents. Either way, the data has to match reality carton by carton.

Then the labels. Every box carries its own FBA box ID label plus the carrier label, both on a flat face, never folded over an edge or a seam, never covering each other.

The worst outcome of this step is a carton that turns up wearing a shipment ID from an older plan. Amazon receives it as unexpected inventory, which means the units exist on a shelf and do not exist in your account, and inbound defects like that are charged back to you by the unit.

The second a label goes on a carton, that box belongs to that shipment ID and nothing else. Labels are not reusable and they do not transfer.

Step 8. Carrier, delivery window, and the handoff

You have two roads. Amazon's partnered carrier program prices and prints the label inside the workflow for both small parcel and freight, and tracking flows back automatically. Your own carrier is often cheaper on freight, but then you owe Amazon what the partnered program would have supplied: tracking numbers soon after the shipment is created, and a delivery window, the date range you expect the boxes to arrive. Partnered shipments need none of that.

If you are moving pallets, freight adds pallet labels, a bill of lading carrying the shipment reference, and a delivery appointment booked through Amazon's carrier portal. Your carrier books it, but only if you gave them the right reference.

Count the cartons against the plan while the driver waits, photograph the pallets with the labels showing, check the piece count on the bill of lading, and save the tracking or PRO number into the shipment the same day. Ten minutes on the dock is what a discrepancy investigation three weeks later will run on.

Pickup is the last cheap minute. A partnered label refunds only inside a short window after purchase, and once the truck pulls away you are managing a shipment rather than editing a plan.

Step 9. What the status field is actually telling you

This is where new sellers burn their nerves, mostly because the words mean less than they sound like they mean.

Status	What has physically happened	What it means for you
Shipped	The carrier has the boxes. Amazon is not involved yet.	Confirm the tracking is attached to the shipment, then stop refreshing.
In transit, then Delivered	Carrier data, not warehouse data. Delivered means a dock.	Nothing is inventory yet. A quiet stretch here is normal.
Checked in	The building has acknowledged that your boxes exist. Nobody has opened them.	Days can pass before the first scan, more in peak season.
Receiving	Units are being scanned onto shelves.	Quantities appear in waves and unevenly across a split. Do not file a case yet.
Closed	Amazon considers the shipment finished, either because it reconciled or because it sat open long enough.	This is your deadline for asking about units that never appeared.

A split shipment moves through those rows at different speeds in different buildings. One destination can close while another is still receiving, and your numbers will look wrong until the last one catches up. Nothing accelerates a receive in progress, and a case filed while units are still being scanned is why a lot of sellers get a template answer to a real problem.

Step 10. Reconciliation, and how the shipment ends

When receiving stops, compare shipped against received in the shipment tracking view, while the shipment is still open. Amazon flags discrepancies and asks you to account for them, and an investigation runs entirely on documents you either kept or did not.

We take the paperwork side of that apart in shipments that get rejected, delayed, or surcharged, from what a supplier invoice has to contain to how a reconciliation case gets argued. The part that belongs to a first shipment is shorter: a closed shipment is a closed argument, so look at the numbers before Amazon closes it for you.

This is also the moment your first shipment tells you the truth about whoever prepped it. Unexplained shortages, damaged units, and repeat relabeling charges trace back to how the goods left the bench.

What the second shipment inherits from the first

New professional accounts get an opening stretch with no FBA capacity limit, which is why a first shipment feels unrestricted and a third one does not. What actually makes shipment two easier is what you wrote down during shipment one:

• The real cost per unit of prepping it, including the printer, the bags, the tape, and the hours you did not bill yourself for.
• How long each destination took to get from Delivered to Closed.
• Which SKUs reconciled exactly and which came up short.
• The packing template that turned out to be correct, saved under a name you will still recognize in March.

Scale the SKUs that reconciled cleanly. Treat the ones that did not as a question about your own process before you decide it was Amazon's.

Nerves and edge cases

Do I have to use a prep center for my first shipment?

No. A few hundred simple units are doable at a kitchen table with a thermal printer, poly bags, and patience. The switch usually happens when the work stops fitting into evenings, when a supplier sends pallets you have nowhere to put, or when the product needs prep you cannot verify yourself. That point arrives at a different volume for every product, and it is worth running a side-by-side of a prep center against doing it yourself before you get there.

Can Amazon still label a unit I forgot?

No, and there is no paid version of it either. That service ended for US FBA shipments on January 1, 2026, and nothing replaced it on the receiving dock. Anything missing the label it needed gets handled as defective: a per-unit defect fee, no sales while it sits, and a weak position if you later ask to be reimbursed for it.

What happens if I delete a shipment after creating it?

Deleting a draft costs nothing. Deleting a confirmed shipment is a different matter: boxes from cancelled or deleted shipments can be refused if they arrive anyway, and repeated cases can restrict your ability to create new ones. If you already bought a partnered carrier label, the refund window is short. Fix the plan before you approve it, not after.

Can I add units to a shipment after I confirm it?

Treat a confirmed shipment as closed to edits. The safe move is a second plan for the extra units, because a carton that is not in the box contents arrives as unexpected inventory and gets counted against nothing. Deleting the shipment and rebuilding it to fit the extras in is the worse option of the two. Ship what you planned, then ship the rest.

Can I put goods from two different suppliers in one shipment?

Yes, as an individual-units plan rather than a case-packed one, and the box contents have to be exact for every carton no matter who supplied what. The real limit here is your own counting: two pack lists, two sets of cartons, and one plan is where first shipments usually lose track of a box.

How long until my first shipment is sellable?

It varies by fulfillment center, by season, and by how the plan was packed, and case-packed shipments generally clear faster than mixed boxes. What you control is the input: accurate box contents, clean labels, correct weights, and tracking added the day the boxes ship. When a shipment sits in Receiving longer than expected, sloppy inputs are usually what put it there.