Fulfilling your own Amazon orders means owning the rules, the rates and the risk. See how FBM shipping works, what Amazon measures, and how Buy Shipping and your own carrier rates compare.
- How FBM shipping works
- Amazon's shipping rules and targets
- Buy Shipping and connected carrier accounts
- Rates you can compare
Who Needs an Amazon FBM Shipping Guide?
Amazon describes Fulfillment by Merchant, or FBM, as a suite of solutions for sellers who fulfill customer orders directly. These sellers gain the most from understanding it.
Sellers new to FBM
You set your own handling time, pack your own orders and confirm every shipment. Knowing the rules first avoids account problems later.
FBA sellers adding FBM
Amazon says you can use FBM for your whole catalog or combine it with Fulfillment by Amazon. It points to FBM for items that cannot be sold through FBA, such as heavy, bulky or slow-moving products.
Multichannel sellers
If you also sell through your own store or other marketplaces, one set of carrier rates can be easier to manage than separate label sources.
Sellers whose shipping costs are rising
Fulfillment costs vary by product, weight and dimensions. A closer look at your cost per label often finds savings.
Sellers aiming for faster delivery
Amazon says Seller Fulfilled Prime requires meeting performance requirements, so reliable shipping is the foundation.
How to Set Up Amazon FBM Shipping - Step by Step
Work through these steps in order. Each one affects the next.
Step 1: Set handling time, transit time and capacity
Amazon says you set a handling time, a transit time and an order capacity limit. Total delivery time adds your handling time, transit time and a buffer for delays.
Step 2: Build your shipping templates
Templates set delivery regions and speeds. Amazon says Shipping Settings Automation can set regions and transit times from your warehouse location and chosen carriers.
Step 3: Choose how you buy labels
Options include Buy Shipping, a connected carrier account, Amazon Shipping, or labels bought elsewhere. Compare price and protection, covered below.
Step 4: Confirm every shipment with valid tracking
Confirm within your stated handling time. Amazon says that if you do not confirm a shipment within 7 days, it cancels the order and you are not paid.
Step 5: Watch Account Health
Review late shipments, cancellations, tracking and delivery metrics each week, and fix problems before they build.
How Amazon FBM Differs From FBA
With FBA, Amazon stores, packs and ships for you. With FBM, you take on the work, and Amazon lists these responsibilities:
- Storage, packing and shipping. You handle them yourself, or buy labels through Buy Shipping, Veeqo or Amazon Shipping.
- Shipment confirmation. You confirm shipment within your stated handling time.
- Buyer messages. You communicate through Buyer-Seller Messaging, and Amazon recommends replying within 24 hours.
- Returns. Amazon enrolls U.S. sellers in its prepaid returns label program, and returns outside its policy come to you.
Amazon does not publish a single FBM fee. Shipping cost depends on the product, its weight and dimensions, and the label source you choose.
What Amazon Measures on FBM Orders
This table summarizes targets Amazon states for seller-fulfilled orders, based on its pages and seller forum posts checked in October 2026. Amazon updates these, so confirm current numbers in Account Health.
| Metric | Target Amazon states | What it means for you |
|---|---|---|
| Late Shipment Rate | Under 4%, measured over 10 or 30 days | An order is late when shipment is confirmed after the expected ship date |
| Pre-fulfillment Cancel Rate | Under 2.5%, measured over 7 days | Orders Amazon cancels because you did not confirm shipment count against you |
| Valid Tracking Rate | Above 95%, measured over 30 days by category | Enter a correct tracking ID for every package |
| On-Time Delivery Rate | At least 90% without promise extensions, with 95% or more recommended | Choose services and carriers that keep your delivery promise |
What Amazon Buy Shipping Offers
Amazon describes Buy Shipping as a way to compare rates across carriers and buy and print labels for FBM orders, up to 100 labels at once. It says shipments are confirmed and tracked automatically.
- Rates. Amazon says its pre-negotiated rates are over 31% lower on average than retail ground rates from major carriers. That is Amazon's comparison, not a figure for your parcels.
- Claim protection. Amazon links higher refunds on A-to-z and SAFE-T claims to labels bought through Buy Shipping and shipped on time. A-to-z protection also needs buyer messages answered within 48 hours.
- Carriers. Amazon lists FedEx among the carriers available through Buy Shipping, alongside Amazon Shipping and others.
For the full comparison of protections, read our page on shipping for Amazon sellers.
Connected Carrier Accounts and Other Label Options
Buy Shipping is not the only route. Amazon's pages describe these options:
- Connected carrier account. Amazon says you can connect your own carrier account to buy labels with your own pre-negotiated rates, and that you get account protection for delivery-related claims either way. Its A-to-z and SAFE-T conditions are written around labels bought through Buy Shipping, so check Seller Central for how they apply to connected rates.
- Labels bought outside Amazon. You confirm shipment yourself with the carrier and tracking ID. Amazon's protection conditions are tied to Buy Shipping, so you manage claims and keep your own delivery and tracking numbers healthy.
- Amazon Shipping. Amazon's own carrier offers pickup and delivery seven days a week for FBM orders, in select regions.
The right choice depends on your parcels, your volume and your risk. Price a typical order each way before you move volume.
What Makes Up Your FBM Shipping Cost
Whatever the label source, the carrier's own charges apply. FedEx's published information, checked in October 2026, shows the parts:
- Billable weight. FedEx charges on dimensional weight or actual weight, whichever is greater, using a divisor of 139. Our guide explains dimensional weight.
- Delivery zone. Zones are set by the origin and destination ZIP codes.
- Extra charges. FedEx lists fees such as Additional Handling, Delivery Area Surcharge, Residential Delivery Charge and Address Correction.
- Peak season. FedEx publishes per-package demand surcharges. See our bulk shipping discounts page for the amounts.
- Annual changes. FedEx says standard list rates will rise an average of 5.9% on January 4, 2027.
Questions to Ask Before You Choose a Label Source
Use the same questions with every provider, including us:
- Can your rates be connected to Amazon Buy Shipping as a carrier account?
- How do tracking numbers reach my Amazon orders?
- Which of Amazon's protections still apply to these labels?
- Does the discount apply to the base rate, to surcharges or to both?
- What order volume is the pricing based on?
- What happens if a parcel is late or lost?
Where Unival Fits In
Unival offers volume-based FedEx pricing built around long-term shipping volume. Request a quote and you will see the rate for your own parcels before you ship. We do not publish a fixed discount, because savings depend on your parcels, destinations, services and volume.
- Rates are quoted through our quote form.
- Our shipping API connects to your platform, order management or warehouse system. See the API and Shopify integration page.
- Selling elsewhere too? See our eBay seller shipping, ecommerce shipping rates and bulk shipping discounts.
- For the wider range, see discounted shipping and how to compare shipping rates.
- Selling high-value items? See our insured high-value shipping.
Amazon and FedEx are trademarks of their owners. They are named here to identify the marketplace and carrier described, as checked in October 2026. Unival is not Amazon or FedEx, and this page does not imply endorsement by either.
Key takeaway
FBM puts the rules, the rates and the risk in your hands. Know Amazon's targets, compare every label source for your own parcels, and keep tracking clean. Get a quote from Unival based on your order volume.
Frequently Asked Questions
What is Amazon FBM?
Fulfillment by Merchant means you fulfill customer orders yourself. Amazon calls it a suite of solutions for sellers who ship their own orders.
What is the difference between FBM and FBA?
With FBA, Amazon stores, packs and ships for you. With FBM, you store, pack and ship, and you can use FBM for part or all of your catalog.
What happens if I do not confirm shipment?
Amazon says that if you do not confirm a shipment within 7 days, it cancels the order and you are not paid, even if the item shipped.
Do I have to use Buy Shipping for FBM?
No. Amazon lets sellers confirm shipment with a carrier and tracking number, but its claim and delivery protections are tied to Buy Shipping labels. Check the current rules in Seller Central.
Can I connect my own carrier account to Buy Shipping?
Amazon says yes, so you can buy labels at your own pre-negotiated rates and still get account protection for delivery-related claims. Ask us whether our FedEx pricing can be used this way.
How much can I save with Unival?
Savings depend on your parcels, destinations, services and volume. We do not publish a fixed discount, so request a quote to see the rate for your own orders.
How do I get a quote?
Send your typical parcel sizes and weights, destinations and monthly volume through the quote form.
Is discounted shipping insured?
Cover depends on the service you choose and is confirmed in your quote. For high-value goods that need full-value insurance, see our insured high-value shipping.
