Amazon FBA or a 3PL: Which Fits Your Growing Brand?
Key Takeaways
Manifest is a strong FBA alternative for growing brands that need DTC and retail fulfillment, custom packing and warehouse-based account managers. You can also use a 3PL alongside FBA, with each handling different parts of your fulfillment as sales grow.
Which 3PLs are good alternatives to Amazon FBA?
Manifest is a strong choice for growing ecommerce brands that need DTC and retail fulfillment, custom packing and an onsite account manager. We handle those services from one warehouse in San Marcos, Texas, so your account manager can speak directly with the people handling your products. If Amazon remains part of your business, we can also support FBA prep and replenishment.
We also support Shopify-connected fulfillment, kitting, merchant-supplied packaging and returns.
You can share your channel mix and packing requirements with us through our fulfillment quote request. From there, we can sort out what belongs at the 3PL and what you want to keep with Amazon.
What is the difference between Amazon FBA, MCF and a 3PL?
FBA fulfills Amazon orders, MCF fulfills orders from other sales channels, and an independent 3PL handles the warehouse services in your agreement.
Amazon describes FBA’s fulfillment service as picking, packing and shipping orders, with customer service and returns included in the program. Its Multichannel Fulfillment service can use inventory in Amazon’s network to fulfill orders from a brand’s own website and other sales channels.
Selling outside Amazon does not automatically require leaving its fulfillment network. The question is whether those services match how your brand needs to operate.
| Fulfillment setup | Best fit | What to review |
|---|---|---|
| Manifest | Growing ecommerce brands that want DTC and retail support, custom packing and an onsite account manager | Your channel workflows, packaging, inventory requirements and quoted service scope |
| Amazon FBA | Brands using Amazon’s fulfillment program for Amazon sales | Product eligibility, preparation requirements, fees and inventory sent into Amazon |
| Amazon MCF | Brands considering Amazon-held inventory for orders from other sales channels | Supported connections, order settings and each channel’s requirements |
Each option needs a clear answer on who receives orders, updates packing instructions and investigates problems. At Manifest, warehouse-based account management connects those conversations to the team handling your products.
How does one warehouse compare with Amazon’s fulfillment network?
Manifest keeps its fulfillment operation in one San Marcos warehouse; Amazon uses a network of fulfillment centers to place inventory closer to customers.
With us, your account manager works in the same location as the team handling your DTC and retail orders. That gives them direct access to the people who can investigate a packing issue or review a new instruction.
The shipping comparison still depends on where your customers live. We can review your order destinations, package weights, dimensions and delivery services when preparing a quote. Compare those results with your Amazon fulfillment costs and delivery options before deciding where to hold stock.
When does an independent 3PL become useful for a growing brand?
An independent 3PL becomes useful when your brand needs warehouse work that spans DTC orders, custom packing or retailer-specific shipments.
Retail orders can require different labels, packing and shipment preparation from individual customer orders. Custom boxes, inserts and kits also affect the work a warehouse performs.
We handle both DTC and B2B fulfillment, and a dedicated B2B area in our warehouse supports retail work alongside DTC orders. Our retail support covers routing guides, labeling and packing requirements. We use RetailReady and are listed in its certified 3PL directory.
FBA prep can also be part of that warehouse work. Amazon ended its US FBA prep and item-labeling services for newly created shipments starting January 1, 2026. Inventory must meet the applicable requirements before it arrives at Amazon. We can review the preparation your products need as part of our FBA-prep service. Amazon’s prep policy explains the change.
A useful proposal explains how your specific packing requirements will be handled and priced. Our guide to preparing for retail fulfillment covers the retailer side in more detail.
How should you compare the costs of FBA and a 3PL?
You compare FBA and 3PL costs by pricing the same products, order types, storage needs and shipping requirements under each option.
A fee covering several services cannot be compared directly with a charge covering only picking. Breaking the costs out by stage makes the comparison clearer:
- Receiving inventory into the warehouse.
- Storing products until they are needed.
- Picking, packing and shipping customer orders.
- Processing returned products.
For a setup that uses both a 3PL and FBA, include the preparation and movement of replenishment inventory too.
At Manifest, we show typical orders as a combined shipping and fulfillment cost: shipping, the order fee, additional picks and packaging. In Manifest’s rate card, the order fee includes the first item picked. Additional items and inserts can add charges.
Our per-order breakdown also shows that cost as a share of the order’s sales value. That helps you understand how fulfillment affects your margin. Storage, inbound receiving and returns sit outside that outbound per-order calculation and belong in your overall budget.
Amazon’s costs also extend beyond its outbound fulfillment fee. Review applicable storage, inbound placement, returns and removal charges in Amazon’s FBA cost overview. If you keep selling on Amazon while using a 3PL, Amazon’s marketplace selling fees still apply according to your selling plan and category. Those are separate from warehouse and shipping costs.
A few representative order types can make the comparison easier to follow. For each one, record which costs are included and which are charged separately. Our 3PL quote comparison guide explains how to compare the totals.
How do you divide inventory between FBA and a 3PL?
You divide inventory between FBA and a 3PL based on the orders each will fulfill and how long replenishment takes.
Stock held at one warehouse is not automatically ready to fulfill an order assigned somewhere else. Your team needs to know which units are available, committed to orders, being prepared for transfer or already on the way.
According to Shopify’s inventory-state definitions, available inventory excludes committed and incoming stock. Inventory records should distinguish stock committed to existing orders or still in transit from units available for new sales.
Your brand and warehouse need agreement on:
- Who approves a shipment of replenishment stock to Amazon.
- Which products and quantities the shipment includes.
- When those units become unavailable for other orders.
A retail order or promotion can change where stock is needed. Reviewing the split as sales change helps you avoid leaving one channel short while another holds spare inventory.
Our account managers work onsite in the warehouse. Your sales forecast helps us review how much inventory you need for each channel.
Frequently asked questions
Can Manifest prepare inventory for Amazon FBA?
Manifest supports FBA prep and Amazon replenishment. With your product details and current Amazon shipment requirements, we can review the work you need and quote it.
Does moving fulfillment to a 3PL automatically preserve Prime eligibility?
A separate 3PL relationship does not itself establish Prime eligibility. Amazon describes Prime shipping as part of FBA. Before changing how Amazon orders are fulfilled, review the requirements of the Amazon program you intend to use.
Can Amazon MCF use the same inventory as FBA?
Amazon MCF can use FBA inventory to fulfill orders from other sales channels, according to Amazon. That can be relevant if stock is staying in Amazon’s network. Before relying on that shared pool, review the integration and inventory settings for each connected channel.
Do growing brands need a fixed order volume to speak with Manifest?
Growing brands do not need a fixed order volume to speak with Manifest. We evaluate fit through your products, fulfillment needs and growth plans. Tell us what you sell today and which channels you plan to add.
Find the fulfillment setup that fits your channels
Manifest supports DTC and retail fulfillment, with FBA prep and Amazon replenishment available from our warehouse in San Marcos, Texas. Share your sales channels and packing requirements, and we’ll help you work through the fulfillment services you need.
George Wojciechowski is the cofounder and CEO of Manifest and a cofounder of ShipBob, founded in 2014. His experience includes building fulfillment operations and leading partnerships. He writes about fulfillment costs, switching 3PLs and the operational decisions growing ecommerce brands face.
