Amazon FBA prep services changed dramatically on January 1, 2026. Amazon discontinued all in-house prep and labeling services for FBA shipments in the U.S., shifting the responsibility entirely to sellers. If you're still figuring out your post-Amazon prep strategy, here's what you need to know.
At 3PLGuys, we're an Amazon SPN-certified prep center in Paramount, CA — 15 minutes from the Port of Long Beach. We maintain 99%+ order accuracy and offer same-day processing for shipments received before 2 PM PT.
What Changed: Amazon Ending FBA Prep
For years, Amazon offered optional prep services at their fulfillment centers. Sellers could ship inventory unprepared, and Amazon would handle polybagging, bubble-wrapping, boxing, and FNSKU labeling for a fee.
That's over now.
Starting January 1, 2026, every unit sent to an Amazon fulfillment center must arrive fully prepped and labeled. No exceptions. This applies to all FBA shipments, including those routed through Amazon Warehousing and Distribution (AWD), Amazon Global Logistics (AGL), SEND, and the Supply Chain Portal.
Amazon's reasoning? Most sellers were already handling their own prep. The company stated that "the vast majority of Amazon sellers now handle their own packaging, including prep and item labeling." For sellers who relied on Amazon's prep services, that explanation doesn't make the transition any easier.
Why This Matters for Sellers
The end of Amazon's prep services creates three immediate challenges:
Compliance risk is now 100% on you. Amazon's packaging requirements haven't changed — they've just stopped doing the work for you. Every FNSKU label, every suffocation warning, every poly bag specification must be perfect before your inventory arrives at the fulfillment center.
When Amazon handled prep, they caught their own errors. Now, if a label is placed incorrectly or a poly bag doesn't meet specs, you're the one dealing with the consequences. There's no safety net.
Non-compliant shipments get rejected. Amazon isn't accepting shipments that don't meet their prep standards. Rejected shipments mean return fees, delays, and potential account health issues. Some sellers report defect fees increasing by up to 1,600% this year for non-compliance.
The math gets ugly fast. A rejected pallet can cost $200-500 in return shipping alone, plus storage fees while you figure out what went wrong. Multiply that by a few shipments, and you're looking at thousands of dollars in preventable losses.
Time burden shifts to your operation. If you were relying on Amazon to handle prep, you now need to build that capability in-house or outsource to a third-party prep center. Either way, it's added complexity.
For sellers already stretched thin managing sourcing, marketing, and customer service, adding prep operations isn't trivial. You need space, equipment, trained staff, and quality control processes. Most sellers find that outsourcing to a dedicated Amazon prep center makes more economic sense.
What You Need from an FBA Prep Service Now
The right Amazon FBA prep service should handle everything Amazon used to do — and do it better. Here's what to look for:
- FNSKU labeling with correct specifications (1" x 2" labels, Code 128 barcode, 300+ DPI)
- Poly bagging with proper mil thickness and sealed adhesive strips
- Suffocation warnings printed or applied to all bags with 5"+ openings
- Bundling and kitting with "Sold as Set" labels
- Expiration date labeling for perishables and supplements
- Box compliance including weight limits and proper packing
- Quality inspection to catch issues before they become Amazon problems
A prep center that cuts corners on any of these will cost you more in rejections and fees than you'll save in per-unit pricing.
FBA Prep Requirements Breakdown
Amazon's prep requirements are exacting. Here's what your prep center (or your team) needs to get right:
FNSKU Labeling
As of March 2026, Amazon enforces a strict mandate: all resellers not enrolled in Brand Registry must apply FNSKU labels to every FBA unit. Manufacturer barcodes alone are no longer accepted for non-brand-registered inventory.
This change caught many sellers off guard. If you've been relying on manufacturer barcodes and stickerless commingled inventory, you now need to label every single unit with your unique FNSKU. For high-volume sellers, that's a significant operational shift.
Label specifications:
- Size: 1" x 2" (standard)
- Barcode format: Code 128
- Resolution: 300+ DPI minimum
- Label stock: White matte
- Placement: Flat surface, away from seams and curves
- Critical: Label must be scannable through poly bag
- All existing barcodes must be completely covered
The "scannable through poly bag" requirement trips up a lot of sellers. If you're poly bagging a product, the FNSKU must be applied to the product itself before bagging, and it must remain scannable through the plastic. This means avoiding reflective or glossy label stock that creates glare.
Poly Bag Requirements
If your product requires poly bagging, these specs are non-negotiable:
- Minimum thickness: 1.5 mil
- Material: Transparent (contents must be visible)
- Closure: Completely sealed with self-sealing adhesive strip
- No loose or open bags
Suffocation Warnings
Any poly bag with an opening of 5 inches or larger requires a suffocation warning:
- Font size: 24-point minimum
- Visibility: Must be readable after sealing
- Placement: Printed directly on bag preferred (labels acceptable)
Bundling and Kitting
Multi-packs and bundles require:
- "Sold as Set — Do Not Separate" label clearly visible
- All items secured together (shrink wrap, poly bag, or box)
- Single FNSKU for the bundle, not individual items
Expiration Date Labels
Products with expiration dates need:
- MM-YYYY or MM-DD-YYYY format
- Label placed on exterior packaging
- Minimum 36-point font
- Visible without opening packaging
Box Requirements
| Requirement | Standard | Exception |
|---|---|---|
| Maximum weight | 50 lbs (22.7 kg) | Single unit over 50 lbs: use "Team Lift" label |
| Box condition | New, sturdy cardboard | No reused, crushed, or damaged boxes |
| Contents | Single shipment ID only | Never mix shipment IDs |
| Packing material | Appropriate for contents | No excess material (oversized box fees apply) |
How to Evaluate Prep Centers
Not all FBA prep centers deliver the same quality. Here's how to separate the good from the problematic:
Location Matters
The best prep centers are positioned within 30-45 minutes of a major Amazon fulfillment center. This minimizes transit time and reduces the risk of damage during shipping.
For sellers importing from Asia, proximity to a major port is equally important. A prep center near the Port of Long Beach or Port of Los Angeles can receive your containers directly, eliminating an entire leg of domestic shipping.
Consider the full journey of your inventory. If your products arrive at the Port of Long Beach, get trucked to a prep center in Phoenix, then shipped to an Amazon FC in California, you're paying for a lot of unnecessary miles. A prep center in the LA basin — like 3PLGuys in Paramount, just 15 minutes from the port — can cut your transit time and costs significantly. We receive containers same-day from Long Beach and can have your inventory Amazon-ready within 24-48 hours.
Turnaround Time
Ask for specific commitments, not vague promises. What's the standard processing time from receipt to Amazon-ready? What happens during peak season? Do they have overflow capacity?
A good prep center should offer 24-48 hour turnaround for standard prep during normal periods, with clear communication about peak season timelines. At 3PLGuys, we process same-day for orders received before 2 PM PT and provide direct access to dedicated account managers via Slack, email, or phone.
Amazon SPN-Certified Prep in Paramount, CA
99%+ order accuracy, 15 minutes from Port of Long Beach, same-day processing before 2 PM PT. Flexible terms, no long-term contracts.
See FBA Prep Services →Pricing Transparency
Per-unit pricing typically ranges from $1.00 to $2.00, but that's just the starting point. Get a complete breakdown:
| Fee Type | What to Ask |
|---|---|
| Receiving | Per unit, per pallet, or per container? |
| Storage | Monthly rate per cubic foot or pallet |
| FNSKU labeling | Included or additional charge? |
| Poly bagging | Price per bag, including materials? |
| Bundling/Kitting | Per bundle or per component? |
| Shipping to Amazon | Who pays the freight? |
| Minimum monthly | Is there a volume commitment? |
Amazon SPN Status
Amazon's Service Provider Network (SPN) certifies third-party prep centers that meet Amazon's standards. SPN-certified providers have demonstrated their ability to prep inventory according to Amazon's requirements.
This matters because SPN providers:
- Undergo Amazon's vetting process
- Have direct lines to Amazon support for shipment issues
- Maintain documented accuracy and compliance rates
- Stay current on Amazon's changing requirements
With Amazon no longer handling prep in-house, SPN certification has become more valuable. It's Amazon's way of saying "we trust this provider to do what we used to do ourselves." When something goes wrong with a shipment, SPN providers often have faster resolution paths than non-certified centers.
Technology and Visibility
A modern prep center should provide:
- Real-time inventory visibility via WMS (Warehouse Management System)
- Integration with your Seller Central account
- Photo documentation of prep work
- Automated alerts for low inventory or issues
If they're tracking your inventory in spreadsheets, that's a red flag.
Questions to Ask Before Signing with a Prep Center
Before you commit to a prep center, get answers to these questions:
1. What's your documented accuracy rate? Look for 99%+ accuracy. Anything lower means you'll be dealing with rejected shipments and Amazon compliance issues.
2. Are you Amazon SPN certified? SPN certification isn't mandatory, but it's a strong signal of credibility and compliance expertise.
3. What happens when Amazon changes requirements? Amazon updates prep requirements regularly. How does the prep center stay informed? How quickly do they adapt?
4. Can I see your facility? A prep center that won't let you tour (or at least see photos/video) is hiding something.
5. What's your policy on damaged or lost inventory? Understand their liability coverage and claims process before you ship anything.
6. How do you handle peak season volume? Black Friday and Q4 separate reliable prep centers from overwhelmed ones. Ask about staffing plans and capacity limits.
7. What are your cutoffs for same-week Amazon delivery? Know exactly when inventory needs to arrive to make it to Amazon before key dates.
FAQ
Q: What happens if I send unprepared inventory to Amazon now?
Amazon will reject the shipment. You'll pay return shipping fees, and the inventory won't be received until it's properly prepped. Repeated issues can affect your account health metrics.
Q: Can I prep inventory myself?
Yes, but it's time-intensive and requires proper equipment (label printers, poly bag sealers, etc.). Most sellers find outsourcing more cost-effective once volume exceeds a few hundred units per month.
Q: How much do FBA prep services cost?
Typical per-unit costs range from $1.00 to $2.00, depending on the complexity of prep required. Additional fees for receiving, storage, and shipping to Amazon vary by provider. Get a complete quote based on your specific products and volume.
Q: Is Amazon SPN certification required for a prep center?
No, but SPN-certified providers have been vetted by Amazon and typically maintain higher compliance standards. It's a useful filter when evaluating options.
Q: What's the best location for an FBA prep center?
Proximity to Amazon fulfillment centers and major ports matters. For importers shipping from Asia, the Los Angeles/Long Beach port area offers the shortest path from container to Amazon-ready inventory.
Q: How do I transition from Amazon's prep services to a third-party provider?
Start by documenting your current prep requirements for each product category. Share this with potential prep centers and get quotes. Send a test shipment before committing to full volume. Build in overlap time — don't wait until you're desperate.
In-House Prep vs. Outsourcing: A Quick Comparison
For sellers weighing whether to build in-house prep capabilities or outsource to a third-party provider, here's how the options stack up:
| Factor | In-House Prep | Third-Party Prep Center |
|---|---|---|
| Upfront cost | High (equipment, space, training) | Low (pay per unit) |
| Per-unit cost | Lower at high volume | $1-2 per unit typical |
| Scalability | Limited by your space/staff | Scales with your volume |
| Quality control | Direct oversight | Depends on provider |
| Amazon compliance | Your responsibility to stay current | Provider stays current |
| Time investment | Significant | Minimal |
| Best for | Very high volume, specialized products | Most sellers |
For most FBA sellers, outsourcing makes sense. The breakeven point where in-house prep becomes more economical is typically around 10,000+ units per month — and even then, you need the space, staff, and willingness to manage another operational function.
The exception is sellers with highly specialized products that require unusual prep procedures. If your prep is genuinely unique, training an in-house team once may beat explaining your requirements to prep center staff repeatedly.
The Bottom Line
Amazon ending FBA prep services is a significant operational shift, but it's not a crisis — it's an opportunity to take control of your supply chain.
The sellers who thrive in this new environment will be the ones who partner with capable, reliable prep centers that treat compliance as non-negotiable. The right prep partner doesn't just slap labels on boxes. They become an extension of your operation, catching problems before they become Amazon issues and keeping your inventory moving.
If you're looking for an Amazon SPN-certified prep center near the Port of Long Beach, get in touch. We're in Paramount, CA — 15 minutes from the port — with sub-1% error rates, same-day processing for orders before 2 PM PT, and dedicated account managers via Slack, email, or phone. Flexible terms, no long-term contracts.
We handle FBA prep for sellers ranging from startup brands to established companies shipping thousands of units monthly. Check out our FBA prep services to see if we're the right fit.
