Amazon FBA Prep Services Ended: Fix Your Reorder Point | Inventory Hero
·22 min readOperations
Amazon FBA Prep Services Ended: Fix Your Reorder Point
Amazon FBA prep services ended Jan 1, 2026 in the US and Jul 1, 2026 in Canada. Who it actually costs days, what prep each unit needs, and how to move your reorder point.
Andrew Erickson is the founder of Inventory Hero. He has spent years working with Amazon FBA sellers on demand forecasting, restock planning, and the cash flow side of running a private-label brand. Inventory Hero exists because every spreadsheet-based inventory system he tried eventually broke — usually right before Q4.
Shipments created after the cutoff that arrive improperly prepped or labeled lose reimbursement eligibility if the units are lost or damaged, so a prep miss becomes an uninsured inventory loss.
Frequently Asked Questions
Did Amazon really stop doing FBA prep and labeling?
Yes. Amazon's own SP-API changelog states that prep and item labeling services for FBA shipments end January 1, 2026 in the US store and July 1, 2026 in the Canada store. It is not a price increase or a narrowing of the paid service, it is a removal: AMAZON is no longer an accepted value for the prepOwner or labelOwner fields in the Fulfillment Inbound API, so there is no longer an option to hand the work to Amazon at any price.
Does this affect me if my supplier already preps and labels at the factory?
No. If your supplier applies the FNSKU, poly bags, bundles, and protects units before the container ships, nothing about your lead time or your reorder point changes. Amazon's stated reason for ending the service was that the vast majority of sellers already handle their own packaging, so factory prep is the normal path for private-label importers and it stays the zero-added-days path. The change bites sellers who were paying Amazon to prep or label, and sellers who now have to route freight through a domestic prep center that was not in the route before.
Which programs does the end of FBA prep services apply to?
All inventory that ends up in FBA. Amazon's announcement lists shipments sent directly into FBA plus inventory arriving from Amazon Warehousing and Distribution (AWD), Amazon Global Logistics (AGL), Amazon SEND, and the Supply Chain Portal. If the units eventually sit on an FBA shelf, they have to be fully prepped and labeled before they get there.
How many days should I add to my lead time for prep?
Zero if your supplier preps at the factory, which is the most common case. If you are adding a domestic prep center, budget 5 to 10 days as a starting placeholder: 1 to 2 days to receive and check in the container, 2 to 3 business days to prep, and the outbound transit leg to the fulfillment center, which is the widest and least predictable part. Every day you add raises the reorder point by one day of sales, so on a 20 unit/day SKU the difference between a 3 day leg and an 11 day leg is 60 versus 220 units on the trigger. Measure your own with the date freight was delivered to the prep center and the date the shipment was picked up for Amazon, and replace the placeholder as soon as you have two or three real cycles.
What happens if my shipment arrives at Amazon unprepped now?
Amazon's announcement is explicit on one consequence: shipments created after the cutoff that arrive without proper prep and item labeling are not eligible for reimbursement if the units are lost or damaged. The qualifier is on the shipment creation date, not on your inventory as a whole, and Amazon has not published anything saying units already received in FBA before the cutoff lose eligibility retroactively. Beyond reimbursement, seller coverage reports a range of outcomes from noncompliance fees to shipments being rejected and returned at the seller's expense. Treat unprepped inbound as uninsured inventory and check your live fee exposure in the shipment workflow and your monthly storage-and-fees report.
Is it cheaper to prep in-house or use a prep center?
A workable rule of thumb: prep in-house when the SKU moves under roughly 1,000 units a month, the prep is a bag and a label, and you have labor whose hours are not your own planning and sourcing time. Move to a prep center when any one of those breaks, most often when a SKU passes a couple of thousand units a month, when prep is multi-step (bundles, sets, fragile protection), or when the only spare labor is you. High unit value pushes toward whichever option gives you inspection control, which is usually in-house or a prep center you have audited. Above all, if the supplier can do it at the factory, that beats both on cost and on days.
Amazon FBA prep services ended on January 1, 2026 in the US store and on July 1, 2026 in the Canada store. Amazon no longer polybags, bubble wraps, bundles, boxes, or applies item labels for you, so every unit has to reach the fulfillment center fully prepped by you, your supplier, or a third party.12 Most coverage treats that as a fee story. For most sellers it is not a story at all, because their supplier already preps at the factory. For the sellers it does touch, it is a lead-time story, because prep becomes a step inside the replenishment cycle, and days move the reorder point.
Amazon removed prep and item labeling services for FBA shipments entirely. In the US store this took effect January 1, 2026; in the Canada store, July 1, 2026.12 Amazon announced the US change publicly at the end of July 2025 and framed it as a consequence of most sellers already handling their own packaging, which lets fulfillment centers focus on faster receive and ship operations.3
Two scoping details matter more than the headline:
It covers every path into FBA. Amazon's notice names inventory sent directly into FBA plus inventory arriving from Amazon Warehousing and Distribution (AWD), Amazon Global Logistics (AGL), Amazon SEND, and the Supply Chain Portal, whenever that inventory goes through FBA.1 There is no upstream program that still preps for you.
It is a removal, not a repricing. In the Fulfillment Inbound API, AMAZON is no longer an accepted value for prepOwner or labelOwner.12 If you have a listing tool or a custom integration that hardcoded AMAZON, that is a broken build, not a fee change.
In the Send to Amazon workflow (Inventory > FBA Inventory > Send to Amazon), prep and label ownership is set per SKU in the first step, where you choose inventory and quantities, before you get to packing and shipping. Amazon moves this interface around, so do not go hunting on a shipment you intend to confirm. Start a draft shipment with one SKU, look at the per-SKU prep and labeling information on that first step, confirm both resolve to you or your provider, and abandon the draft.
The Canada store followed on July 1, 2026, with the same removal and the same API change: AMAZON is no longer accepted for prepOwner or labelOwner across Fulfillment Inbound API operations in CA.2 If you sell in both stores, three things are worth checking now that it is live:
Your CA flow may have been the one still leaning on Amazon. Plenty of sellers ran full factory prep for the US and treated Canada as a small side channel where paying Amazon a per-unit labeling fee on a few hundred units was easier than a second prep spec. That option is gone, and the volumes are usually too small to justify a dedicated Canadian prep center, which makes factory prep the only sane answer.
Prep the CA units at the factory, in the same run. The FNSKU differs by marketplace, so the supplier needs a separate label file and a separate carton set, not a separate production run. Get that into the PO rather than solving it at the border.
Cross-border prep adds a leg you may not want. Sending US-prepped units north through a US prep center means customs on already-prepped goods and a longer, less predictable outbound. If you go that route, treat the entire border leg as unmeasured and hold a wider buffer until you have real cycle data.
FBA prep
The physical work required to make a unit sellable inside Amazon's network before it arrives: applying the FNSKU barcode, poly bagging with a suffocation warning, bubble wrapping or otherwise protecting fragile items, bundling multipacks, and taping or boxing to Amazon's packaging requirements. As of 2026 this is entirely the seller's responsibility, wherever in the chain you choose to do it. See our FBA inventory labeling guide for the barcode side of it.
Before the planning math, the physical spec, because this is the part you have to hand to somebody. Amazon publishes packaging and prep requirements per category, and they did not change with this announcement. What changed is that nobody downstream will fix a miss for you.
Requirement
When it applies
What it means in practice
FNSKU label
Every FBA unit not commingled by manufacturer barcode
A scannable Amazon barcode on the outside of the unit, covering any other scannable barcode
Poly bag with suffocation warning
Bags with an opening of 5 inches or more, measured flat
Printed suffocation warning, transparent bag, FNSKU scannable on or through the bag
Protective packaging
Fragile, glass, or breakable items
Amazon's stated standard is that the packaged unit survives a drop test onto a hard surface
"Sold as set" labeling
Multi-unit sets sold as one ASIN
The set travels as one sealed unit with a do-not-separate marking, one FNSKU on the outer package
Leak-proof packaging
Liquids, gels, creams
Sealed against leaking in transit, commonly a sealed bag over the closure
Full enclosure
Sharp or pointed items
Nothing that can puncture packaging or a picker's hand
Opaque bagging
Adult products
Opaque black poly bag so contents are not visible
These are the requirements sellers hit most often, not a complete list, and the details vary by category. Pull the current packaging and prep requirements help page in Seller Central for each of your categories before you write the spec, and treat this table as the checklist you verify against rather than the source.4
Put it in the purchase order, not in an email. The cheapest version of every requirement above is the one performed at the factory, where labor is already at the unit. A PO line that actually works names: the FNSKU label file and where on the unit it goes, the bag spec and whether the suffocation warning is required, protective packaging for fragile units, set and bundle handling, and carton-level marking. Then require photos of the first three prepped units before the run continues, because catching a wrong label at the factory costs an email and catching it at the fulfillment center costs the shipment. Our purchase order template has the prep fields laid out.
Only if it changed where prep happens. If prep moved from Amazon's building (after receipt, off the critical path) to a prep center in the middle of your route (before receipt, on the critical path), then prep now consumes lead time. If prep was always at the factory, running in parallel with production, nothing moved.
Your reorder point uses the same formula it always has:
Reorder point = (daily sales velocity x total lead time in days) + safety stock
What changes, for the affected group, is the second term. Total lead time is the sum of every leg between deciding to reorder and having sellable units, and it now has a new segment in it:
Total lead time = supplier production + freight and customs + PREP + transit to the FC + Amazon receive and check-in
Nothing in that formula is new math. The trap is that most sellers copied a lead-time number into their planning sheet in 2024 and never rebuilt it. If your total lead time still reflects a route where freight went port to fulfillment center and prep happened after receipt, your reorder point is understated by exactly the number of days the prep leg now takes, and you will place every PO that many days late. For the full replenishment system this sits inside, see the Amazon FBA restock planning guide.
Take a standard-size private label SKU selling 20 units/day with 300 units of safety stock, previously routed port to fulfillment center with labeling done after receipt. Now the container gets rerouted through a domestic prep center.
Leg
Before (days)
Now (days)
Supplier production
30
30
Ocean freight, customs, drayage
28
28
Prep center receive and check-in
0
2
Prep work
0
3
Outbound from prep center, transit to FC
0
6
Amazon receive and check-in
5
5
Total lead time
63
74
The prep detour costs 11 days gross. Note that the ocean leg does not shrink to pay for it: ocean transit is what it is, and while drayage from the port to a nearby prep center can be shorter than drayage to an assigned fulfillment center, Amazon assigns the FC after you create the shipment, so you cannot bank that in advance.5
Reorder point before: (20 x 63) + 300 = 1,560 units
Reorder point now: (20 x 74) + 300 = 1,780 units
That is 220 extra units, and your reorder date moves 11 days earlier in the calendar.
The number you should carry is your own. Eleven days is this example's route, sitting above the 5 to 10 day rule of thumb because it assumes a long domestic outbound. The relationship is linear and easy to run on your own numbers: every prep day costs one day of sales on the trigger.
Two second-order effects worth pricing while you are in the sheet:
What actually goes up is pipeline inventory, not working capital in cycle stock. Raising the reorder point does not mean you carry more stock on the shelf. At constant velocity and the same order quantity, you simply order 11 days earlier; average cycle stock is still order quantity divided by two, plus safety stock. What grows is in-transit inventory: units you have paid for that are sitting on a boat or on a prep bench and cannot be sold. That is a cash-timing effect, not a carrying-cost effect, and it is worth a line in your cash conversion cycle, not a reason to skip the change.
The expensive error is the other direction. If you leave the trigger at 1,560, you have not saved anything, you have taken on unhedged stockout exposure of about 220 units at unchanged service level, landing in whatever month the cycle happens to fall in. At a $25 sale price that is roughly $5,500 of revenue at risk on one SKU on one cycle, before rank decay and the ad spend it takes to climb back. Repeat it across a catalog and per cycle and the comparison to the prep fee stops being close. Our cost of a stockout breakdown has the full accounting.
Safety stock. A brand new leg run by a brand new vendor is also a brand new source of variability. Until you have three or four shipments of real data through the prep center, treat its transit and turnaround as unproven and lean on the wider end of your lead-time variability buffer rather than the average.
Where to get honest inputs: pull daily velocity from Business Reports by ASIN and exclude out-of-stock days from the denominator (the Inventory Ledger shows when the SKU actually had sellable units). Get real lead-time legs from your own PO records plus the shipment detail page in the Send to Amazon workflow, which timestamps delivery and receipt. Do not use the prep center's quoted turnaround as your planning number. Use the measured one. Our inventory lead time guide walks through timing each leg.
Three options, and they are not equal. The default answer is the factory, because it is the only one that adds zero days.
Factory prep is prep performed during or immediately after production, in parallel with a process you are already waiting on. It costs pennies of Chinese or Vietnamese labor per unit, it does not touch your lead time, and it removes an entire domestic handoff from the route. The cost is control: you are trusting a partner you cannot walk into, which is why the photo check on the first units of a run and a spot inspection at receipt are not optional. Use it unless the prep genuinely cannot be done upstream (short-dated goods, kitting across suppliers, US-sourced components, or labels that must be applied after a domestic quality check).
In-house prep costs almost nothing per unit in cash and everything in throughput. Capacity is the hours you and your team can physically work, which is fine at 500 units a month and a problem at 5,000. The lead-time advantage is real: if freight already comes to your space you delete a receiving and outbound leg, and you can prep the first 200 units the day the container lands and send them ahead of the rest. The failure mode is that the constraint is you, and it binds hardest exactly when volume peaks.
A prep center costs money per unit and buys elastic capacity. Directionally, standard prep runs on the order of a dollar or two per unit, though it varies by the work and the provider, with surcharges for bundling, multipacks, and oversize. Those are third-party market rates, not Amazon fees, and they move, so get a written quote. On 3,000 units at $1.50 that is about $4,500 per PO. The trade is that you inherit their queue and an extra freight leg.
If the factory cannot do it, here is a starting rule, hedged because your labor cost and your own time are the variables that actually decide it:
Keep it in-house when the SKU moves under roughly 1,000 units a month, the prep is one bag and one label (a practiced person does 40 to 60 units an hour, so 1,000 units is a couple of days of one person's time), and you have labor whose hours are not your own sourcing and planning time.
Move it to a prep center when any one of those breaks. The usual triggers are a SKU passing a couple of thousand units a month, prep that is multi-step (bundles, sets, fragile protection, kitting), or the discovery that the only spare labor in the building is you. Founder hours spent bagging are the most expensive labor in the company.
Unit value breaks ties toward inspection control. High-value units justify eyes on every piece, which means in-house or a prep center you have physically audited, not the cheapest quote in a Facebook group.
Re-check seasonally, but only where it matters. If a SKU sits near a threshold and Q4 triples its volume, decide it once for peak rather than every month.
When you are grading candidates, ask for the numbers that determine your lead time, not just the price sheet:
Receiving speed. How long from freight delivery to units checked in and countable? There is no published industry benchmark here, so ask for their committed number in writing, then measure what they actually do on your first two containers. The gap between the two is your real planning input.
Prep turnaround. Committed business days from check-in to shipment created, and what happens to that number in October.
Error liability in writing. Who eats it when the wrong FNSKU goes on 400 units and Amazon will no longer reimburse you for the mess.
The consequence Amazon states plainly is the one that should scare you most: shipments created after the cutoff that arrive without proper prep and item labeling are not eligible for reimbursement if those units are lost or damaged.63 An unlabeled unit inside Amazon's network is an untraceable unit, and untraceable units have no claim attached to them. That converts a prep miss from a fee into an uninsured inventory write-off.
Read the qualifier carefully, because sellers get it wrong in both directions. The condition attaches to the shipment creation date. Units already sitting in FBA that were received before the cutoff, prepped under the old rules, are not addressed by the announcement, and Amazon has not published anything indicating they retroactively lose eligibility. Every shipment you create now, though, is squarely inside the new rule, so there is no residual grandfathering to lean on for anything you are shipping today.
Beyond reimbursement eligibility, sources conflict on what happens physically. Some seller coverage reports noncompliance and unplanned-services fees; other coverage reports that shipments can be rejected outright and returned at the seller's expense.67 Amazon has not published a single tidy consequence table, and the fee amounts float, so we are not going to quote a per-unit number here. Check your own live exposure in two places: the noncompliance and defect charges shown against a specific shipment in the shipment detail page of the Send to Amazon workflow, and the monthly storage-and-fees report under Reports > Payments.
Either way, the planning consequence is identical and it is an availability problem, not an accounting one. A rejected or held shipment is inventory that exists, is paid for, and cannot be sold. That is the same hole in your forecast as a supplier delay, so treat prep compliance as a lead-time risk and inspect a sample of every prep batch before it leaves for Amazon. Our inbound shipment guide covers the pre-departure checks worth running.
Because Q4 inbound is being built this month and next, and for anyone who added a prep center this year, that prep center is the newest and least-tested link in their chain. September and October queues are the one leg with no historical baseline of your own to trust, which is a different problem from a leg that is merely slow: you cannot forecast the variance yet.
Sending everything absurdly early is not a free hedge either, though the reason is capacity, not storage. At 0.2 cubic feet a unit, Amazon's peak standard-size storage rate works out to roughly $0.48 per unit-month against $0.16 off-peak, which is cents on a $7 landed cost.8 The real constraints on shipping early are your FBA capacity limits, which cap what you can send regardless of what you have prepped, and on the other side the low-inventory-level fee, which can apply to standard-size units when historical days of supply runs below 28.9 Those two together, not the storage bill, define the window you are aiming at. See days of supply for how that threshold is measured.
Work backwards from the sell-through date instead of forwards from the PO. On the 74-day example above, units you want selling in late November needed a PO placed in early September. That date is a property of that SKU's lead time, not a universal deadline, so plug your own total lead time and target sell-through date into the FBA restock calculator and get your own date per SKU. Then see Q4 peak readiness for the wider seasonal checklist.
Find out if you are affected at all. Ask your supplier, in writing, exactly which prep steps they perform today. If the answer is FNSKU plus poly bag plus carton marking, you are done with the lead-time half of this article and should spend your time on the requirements table instead.
If prep moved into your route, add a prep column to every affected SKU's lead-time build, seeded with a hedged 5 to 10 days if you have no measured number yet, and let the reorder point recompute.
Confirm nothing in your inbound tooling still assumes Amazon preps. Start a draft shipment in Send to Amazon, check that prep and label ownership resolve to you or your provider on the SKU selection step, abandon the draft, and make sure no integration is still sending AMAZON as prepOwner or labelOwner.1
Get a written prep-center quote with a committed October turnaround even if you plan to prep at the factory or in-house, because knowing your fallback capacity is worth more in November than the quote costs in August.
Amazon FBA prep services ended, and for most sellers the honest answer is that nothing changed, because the factory was already doing the work. If prep landed in the middle of your route instead, the fee is the small part. The days are the expensive part, and they only hurt if your reorder point does not know about them yet.
Amazon Selling Partner API changelog, "US FBA prep and labeling services to end January 1, 2026" (published July 2025), developer-docs.amazon.com/sp-api/changelog/us-fba-prep-and-labeling-services-to-end-january-1-2026. States that starting January 1, 2026 prep and item labeling services for FBA shipments are no longer available in the US store; applies to inventory sent directly into FBA and to inventory from AWD, AGL, Amazon SEND, and Supply Chain Portal when that inventory goes through FBA; AMAZON is no longer an accepted value for prepOwner or labelOwner in Fulfillment Inbound API v2024-03-20 operations. ↩↩2↩3↩4↩5
Amazon Selling Partner API changelog, "CA Fulfillment by Amazon prep and labeling services will end July 1, 2026," developer-docs.amazon.com/sp-api/changelog/ca-fulfillment-by-amazon-prep-and-labeling-services-will-end-july-1-2026. Same removal in the Canada store effective July 1, 2026, including AMAZON no longer being accepted for prepOwner and labelOwner across Fulfillment Inbound API operations. ↩↩2↩3↩4
Supply Chain Dive, "Amazon to end FBA prep, labeling services in US," August 1, 2025, supplychaindive.com/news/amazon-fba-prep-item-labeling-services-end/756289/. Reports the announcement, the January 1, 2026 effective date, Amazon's stated rationale that the vast majority of sellers already handle their own packaging, and that shipments created after January 1, 2026 without proper prep and labeling are not eligible for reimbursement if damaged or deemed untraceable.
Amazon Seller Central Help, "Packaging and prep requirements" and the related poly bag, sold-as-set, and category-specific prep pages (sellercentral.amazon.com). Source for the FNSKU placement rule, the suffocation-warning requirement on poly bags with an opening of 5 inches or more measured flat, drop-test protection for fragile units, set labeling, leak-proof packaging for liquids, full enclosure for sharp items, and opaque bagging for adult products. Amazon revises these pages and applies category-specific exceptions, so verify against the live page for your categories before writing a prep spec. ↩
The example holds the ocean, customs, and drayage leg constant at 28 days rather than crediting the prep detour with a shorter first mile. Ocean transit does not shorten because a prep center is involved; only the drayage portion can change, and Amazon assigns the destination fulfillment center after the shipment is created, so you cannot assume the prep center sits closer to the port than the FC would have. If your prep center is genuinely at the port and you have measured a shorter drayage leg over several containers, credit the days you measured, not the days you hope for. ↩
Seller-facing coverage of Amazon's announcement, including Qualfon, "Amazon FBA prep services ending January 1, 2026: your readiness checklist" (2025) and Threecolts, "Amazon ends FBA prep services: action checklist" (2026). These are the sources for reports that improperly prepped shipments may be rejected or returned at the seller's cost. Amazon does not publish a consolidated consequence table, so treat the physical-handling outcomes as reported rather than guaranteed and verify your own charges in Seller Central. ↩↩2
Novadata, "Amazon ends FBA prep and labelling in Canada, effective July 1" (June 2026), novadata.io. Reports the Canada change and, in contrast to the rejection reports above, describes unprepped units being received and shipped with the seller simply losing any reimbursement claim. The sources disagree on physical handling; they agree on the loss of reimbursement eligibility. ↩
FBA monthly storage rates as held in Inventory Hero's reference-data registry (lib/reference-data/registry.ts, re-verified August 2026) against Amazon's published FBA storage fee schedule on Seller Central: standard-size $0.78 per cubic foot off-peak (January to September) and $2.40 per cubic foot at peak (October to December). At 0.2 cubic feet per unit that is about $0.16 and $0.48 per unit-month respectively. Amazon also applies a temporary 3.5% fuel and logistics surcharge on top of published base fulfillment rates as of April 17, 2026. ↩
Low-inventory-level fee threshold as held in Inventory Hero's reference-data registry (lib/reference-data/registry.ts): standard-size units can incur the low-inventory-level fee when historical days of supply runs below 28 days, effective April 1, 2024, per Amazon's published low-inventory-level fee documentation on Seller Central. ↩