Key Takeaways
- SFP puts the Prime badge on orders you ship yourself. Seller Fulfilled Prime lets a brand ship Prime orders from its own warehouse or a 3PL instead of sending inventory to Amazon FBA.
- Amazon enrolls seller accounts, not buildings. A 3PL being "SFP approved" means it can hit Amazon's standards from that warehouse, but your account still has to pass its own trial and keep its own metrics.
- The bar is speed, tracking and cancellations. Amazon watches on-time delivery, valid tracking and cancellation rate every week, and measures how often Prime shoppers see a fast delivery date.
- SFP fits oversized, heavy, high-value and multichannel products best. For small, cheap, fast-selling items, FBA is usually simpler.
- Vet the 3PL on cutoffs, weekends and tracking. Order cutoff time, weekend shipping and automatic tracking upload decide whether you keep Prime.
By Andrew Morgans, founder of Marknology, selling on Amazon since 2011 | Updated September 25, 2026
A Seller Fulfilled Prime (SFP) 3PL is a third-party logistics warehouse that picks, packs and ships your Amazon Prime orders fast enough, and with clean enough tracking, for your seller account to keep the Prime badge without using Fulfillment by Amazon (FBA). The right one ships the same day, runs on weekends, uploads tracking automatically and can prove it has passed Amazon's SFP standards from that building.
We run a 20,000 square foot warehouse in Kansas City, and it is approved for Seller Fulfilled Prime. Our own brands ship from the same building. This guide explains how SFP works in 2026, how it compares with FBA and merchant fulfillment, when it makes sense, and what to ask any 3PL that says it can run SFP for you.
What is Seller Fulfilled Prime?
Seller Fulfilled Prime is an Amazon program that lets a seller display the Prime badge on products the seller ships from its own inventory. The shopper sees the same Prime promise they get from FBA. Behind the scenes, the order drops into Seller Central, your warehouse picks and ships it, and tracking flows back to Amazon.
Amazon handles post-order customer service on SFP orders, including returns and refunds, while the seller answers questions before the order. You keep your inventory in one place, which matters if you also sell on Shopify, Walmart Marketplace or TikTok Shop. You also take on the full cost of shipping, because Prime shoppers expect free, fast delivery.
SFP launched in 2015, closed to new sellers for several years, and reopened in 2023 with stricter delivery speed rules. Amazon has kept adjusting those rules since, so treat any fixed number you read online, including in this article, as something to confirm in Seller Central before you plan around it.
What are the Seller Fulfilled Prime requirements?
To join SFP you need a Professional selling account, a domestic US default shipping address and a record of self-fulfilled orders that meets Amazon's prequalification standards. Amazon's Seller Central help page lists at least 100 seller-fulfilled packages shipped and a cancellation rate under 2.5% among those standards. Then you complete a trial.
The SFP trial
The trial runs for 30 days. During it you ship a minimum number of Prime trial orders and hold Amazon's performance standards the whole time. Pass, and Amazon enrolls your account. Miss, and you can fix the gaps and try again later. The trial is where most failures happen, usually because a warehouse that was fine for regular merchant orders cannot keep up with Prime cutoffs and weekend volume.
The performance metrics Amazon watches
Amazon reviews SFP performance weekly, Sunday through Saturday. The core measures are below. The thresholds shown are the ones most widely published; confirm the current numbers on the SFP page in Seller Central.
| Metric | What it measures | Commonly published threshold |
|---|---|---|
| On-time delivery rate (OTDR) | Share of orders delivered by the promised date | At least 93.5% |
| Valid tracking rate (VTR) | Share of shipments with carrier tracking Amazon can read | At least 99% |
| Cancellation rate | Share of orders the seller cancels before shipping | Below 0.5% |
| Delivery speed | Share of Prime page views that show a fast delivery date | Set by size tier: strictest for standard size, lower for oversize and extra large |
Delivery speed by size tier: the July 2026 update
Since the 2023 relaunch, the hardest SFP requirement is speed. Amazon measures how often Prime shoppers see a fast delivery date on your listings, with separate targets by size tier. In an announcement dated May 21, 2026, Amazon raised those targets, effective July 6, 2026. All other SFP eligibility requirements stayed the same.
| Size tier | Share of Prime page views that must show delivery within... |
|---|---|
| Standard size | 1 day: 40%. 2 days: 75%. 5 days: 90%. |
| Oversize | 1 day: 15%. 5 days: 80%. |
| Extra large | 2 days: 25% (up from 15%). 5 days: 60%. |
Two more changes matter for anyone shipping from a 3PL. Amazon said a new tool arriving in September 2026 lets sellers enter shipping times, weekend availability and cutoff times by zip code, and that weekends count in the speed metric from October 17, 2026. A warehouse that does not ship on weekends will show slower delivery dates, and that now counts against you.
This is the single most useful fact for deciding whether SFP fits you. A warehouse in one location can reach a large share of the country quickly by ground, but it cannot show one-day delivery to every shopper nationwide. That makes SFP from one warehouse a stronger fit for oversize and heavy products than for small, standard size items competing against FBA's one-day network.
Operating rules
- Free standard shipping on Prime orders. You pay the postage.
- Weekend operations. Plan on picking, packing and handing parcels to carriers on weekends.
- Accurate shipping templates. Your Prime shipping template in Seller Central must match what the warehouse can really do, including its order cutoff time.
- Tracking on every parcel. Tracking has to be uploaded promptly and scanned by the carrier.
- Amazon's returns policy. SFP orders follow Amazon's return rules.
SFP vs FBA vs FBM: what is the difference?
FBA (Fulfillment by Amazon) means Amazon stores and ships your inventory. FBM (fulfilled by merchant) means you ship without the Prime badge. SFP sits between them: you ship, but with the Prime badge and Prime standards.
| FBA | SFP | FBM (no Prime) | |
|---|---|---|---|
| Who stores and ships | Amazon | You or your 3PL | You or your 3PL |
| Prime badge | Yes | Yes, after passing the trial | No |
| Delivery standards | Amazon's network | Strict: speed, tracking, cancellations, weekends | Standard seller metrics |
| Fees | FBA fulfillment, storage, inbound placement and related fees | Your warehouse and postage costs, plus any SFP program fees | Your warehouse and postage costs |
| Inventory | Split: Amazon holds its own pool | One pool for Amazon and other channels | One pool |
| Capacity limits | Amazon capacity limits and storage rules apply | Limited by your warehouse | Limited by your warehouse |
| Packaging and inserts | Amazon packaging | Your packaging, inserts and kitting | Your packaging |
| Customer service after the order | Amazon | Amazon | You |
For a deeper look at the two main models, read our guide to FBA vs FBM. To compare profit per unit across all three methods with your own numbers, use our FBA vs FBM vs Seller Fulfilled Prime profit calculator.
When does Seller Fulfilled Prime make sense?
SFP is not better than FBA in general. It is better for certain products and certain businesses. These are the situations where we see it earn its keep.
Oversized and heavy products
FBA fees and storage rules bite hardest on large items, and Amazon's SFP speed bar is lower for oversize and extra large tiers. Furniture, fitness equipment, large pet products and bulky home goods are classic SFP candidates.
High-value products
Expensive items benefit from tighter control: inspection before shipping, better packaging, serial number tracking and fewer hands. Keeping them in your own warehouse also reduces the inventory you have tied up in someone else's network.
Brands squeezed by FBA capacity limits
When Amazon limits how much inventory you can send in, a brand can run out of stock on FBA while product sits in its own warehouse. SFP lets that inventory sell with the Prime badge. Many brands run an FBA offer and an SFP offer side by side, using SFP as the backstop when FBA stock runs low.
Multichannel brands
If you sell on Amazon, your own Shopify site, Walmart and TikTok Shop, one inventory pool is simpler than splitting stock between FBA and a 3PL. SFP lets Amazon draw from the same shelf as every other channel. See our multi-marketplace work for how that fits together.
Custom, bundled or seasonal products
Kits, gift sets, personalized items and products with inserts are easier to build on demand in your own warehouse than to prep in advance for FBA.
When SFP is usually the wrong call
- Small, light, low-price products that sell fast. FBA fees are modest and Amazon's one-day network is hard to match from one warehouse.
- Brands without weekend coverage or reliable same-day shipping.
- Very low order volume, where the fixed effort of meeting Prime standards is not worth it.
What does "SFP approved 3PL" actually mean?
Here is the nuance most 3PL pages skip. Amazon enrolls seller accounts in SFP, not warehouses. When a 3PL says it is SFP approved, it usually means it has shipped Prime orders from that building for an account that passed the trial and held the standards. That is real evidence the building can do it. It does not transfer Prime status to your account.
So ask three direct questions:
- Which accounts have passed SFP from this warehouse, and are they still enrolled? A 3PL that has really passed SFP from its building should be able to show you live Prime listings shipped from there.
- Will my account need its own trial? In almost every case, yes. The 3PL's job is to make sure you pass it.
- What happens to my metrics if you miss? Late shipments and missing tracking land on your account, not theirs. Ask how they catch and fix exceptions before they count against you.
How do you evaluate an SFP 3PL?
Use this checklist when comparing warehouses. Every item connects to one of Amazon's metrics.
| What to check | Why it matters for SFP | Good answer |
|---|---|---|
| Order cutoff for same-day shipping | Drives on-time delivery and what your template can promise | A stated cutoff in writing. Ours is noon Central. |
| Weekend operations | SFP expects weekend shipping | Staffed weekend shifts and weekend carrier pickups |
| Tracking upload | Valid tracking rate | Automatic sync to Seller Central, no manual entry |
| Carrier mix | Speed and cost by zone | Several carriers, with rate shopping by service level |
| Location and number of warehouses | Delivery speed share by size tier | An honest map of where they can promise one-day and two-day delivery |
| Inventory accuracy | Cancellations from stock that is not really there | Cycle counts and real-time inventory sync to Amazon |
| Peak capacity | Prime Day and the fourth quarter | A plan for staffing and cutoffs during peaks |
| SFP reporting | Catching problems before Amazon does | Daily view of late shipments, missing scans and cancellations |
| Trial support | The trial is where brands fail | A named person who has run SFP trials before |
| Other channels | One inventory pool | Shopify, Walmart and TikTok Shop orders from the same stock |
Cost matters too, and postage is usually the largest line. Our breakdown of how much a 3PL costs shows how to compare quotes on your own orders, and our 3PL fulfillment guide covers the non-price criteria.
Weighing SFP against FBA for your catalog? See how our Kansas City warehouse runs Seller Fulfilled Prime, FBA prep and multichannel orders from one building. If you want the full picture first, our Growth Diagnostic reviews Amazon, your own site and your other marketplaces, including which products belong in FBA, SFP or merchant fulfillment, and ends with a 90-day roadmap.
How do you get Seller Fulfilled Prime with a 3PL?
- Check eligibility. Confirm your Professional account and your recent self-fulfilled performance meet Amazon's prequalification standards on the SFP page in Seller Central.
- Pick the right SKUs. Start with products where SFP clearly wins: oversize, heavy, high-value or often capped on FBA.
- Move inventory and connect systems. Your 3PL receives stock and connects to Seller Central so orders drop in and tracking flows back automatically.
- Build a Prime shipping template that matches reality. Set handling time and regions around the warehouse's real cutoff and carrier transit, not wishful thinking.
- Start the trial. Watch late shipments, tracking and cancellations daily for the full 30 days. Fix any exception the same day.
- Keep monitoring after enrollment. Amazon reviews SFP weekly. Stock outs, peak season and carrier delays are when brands lose the badge.
What should manufacturers and CPG brands know about SFP?
Manufacturers and consumer packaged goods (CPG) brands often ship to retailers, distributors and consumers from the same inventory. SFP lets the Amazon slice of that business run from the warehouse you already use, instead of carving out a separate FBA pool. Two cautions. First, products with lot or expiration tracking need a 3PL that picks first-expired, first-out on every Prime order. Second, if your Amazon business runs through Vendor Central, SFP does not apply; it is a Seller Central program. Our guide to selling on Amazon as a manufacturer covers that choice.
Why we run SFP from Kansas City
We built our Kansas City warehouse because we needed it for our own brands, including our pet brand Waggedy. It is approved for Seller Fulfilled Prime, orders received by noon Central ship the same day, and the same building handles FBA prep, kitting and orders for Shopify, Walmart and TikTok Shop. For dated products we track lot numbers and expiration dates and ship the earliest-dated stock first. Storage is room temperature only; we do not offer refrigerated or frozen storage. Because the people running your Amazon account work alongside the people shipping your orders, a slipping metric gets noticed by both sides. Read more about why brands ship from Kansas City, or see our FBA and fulfillment services.
Sources, checked September 25, 2026. Amazon, Seller Fulfilled Prime program page. Amazon Seller Central help, SFP trial prequalification. Amazon SFP requirements announcement of May 21, 2026, as reported on Sellers Ask Sellers. Amazon changes these rules; confirm current numbers in Seller Central.
Frequently Asked Questions
What is an SFP 3PL?
An SFP 3PL is a third-party logistics warehouse that can ship Amazon Prime orders fast and reliably enough for a seller account to keep the Prime badge under Seller Fulfilled Prime. It needs same-day shipping to a stated cutoff, weekend operations and automatic tracking upload to Seller Central.
Can a 3PL get me into Seller Fulfilled Prime?
A 3PL can do the fulfillment, but Amazon enrolls your seller account, not the warehouse. Your account still has to pass the 30-day trial and hold the weekly metrics. A 3PL that has already passed SFP from its building makes that far more likely.
What are the SFP requirements in 2026?
You need a Professional account, a US default shipping address, a clean self-fulfilled record and a passed 30-day trial. After that Amazon watches on-time delivery, valid tracking, cancellation rate and how often Prime shoppers see fast delivery dates, with speed targets set by size tier. Confirm current thresholds in Seller Central.
Is Seller Fulfilled Prime cheaper than FBA?
It depends on the product. For oversize, heavy or slow-moving products, SFP through a 3PL is often cheaper than FBA fees and storage. For small, fast-selling items, FBA is usually competitive. Model both with a real month of your orders.
What changed in the Seller Fulfilled Prime requirements in 2026?
Amazon raised the delivery speed targets effective July 6, 2026. Standard size products now need 40% of Prime page views to show one-day delivery, 75% two-day and 90% within five days, with lower targets for oversize and extra large. Weekends count in the speed metric from October 17, 2026.
Can I use FBA and SFP at the same time?
Yes. Many brands keep FBA for most of their catalog and use SFP for oversize products or as a backup offer when FBA inventory runs low. Each offer needs its own SKU and its own inventory.
Is Marknology's warehouse approved for Seller Fulfilled Prime?
Yes. Our 20,000 square foot Kansas City warehouse is approved for Seller Fulfilled Prime, and orders received by noon Central ship the same day. Our own brands ship from the same building.