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Amazon FBA or a 3PL for Your Orders?

Amazon only, your own store, or both.

FBA or a 3PL: The Short Answer

If you sell only on Amazon and FBA is working, FBA alone is usually the simpler choice: Amazon stores your inventory, ships your Amazon orders and handles customer service and returns for them. A 3PL makes more sense once you also sell through your own store or other channels, want your own packaging and inserts, or need inventory held and prepped outside Amazon. Many brands use both: a 3PL ships their direct orders and prepares the shipments that restock FBA.

    Which side are you on?

  • Amazon is your only channel

    FBA alone is often enough. Check the cost with Amazon’s own fee pages before you add anyone else.
  • You also sell on your own site

    A 3PL can ship those orders in your packaging, from the same stock that restocks Amazon.
  • Your products need prep

    Labels, poly bags and bundles have to be done before inventory goes into Amazon. A 3PL can do that work for you.
  • You care about the unboxing

    A 3PL packs your direct orders to your instructions: branded boxes, inserts and gift notes.

FBA and a 3PL, Side by Side

Neither column wins every row. What matters is which rows matter to you.

QuestionAmazon FBAA 3PL
What it is built forOrders placed on Amazon. Amazon describes FBA as a way to outsource your order fulfillment to Amazon.Orders from your own store, marketplaces, wholesale and subscriptions, shipped from one inventory.
PrimeAmazon says FBA products are eligible for free two-day shipping through Prime.A 3PL can prep inventory and send it into FBA, so the units in Amazon stay FBA units.
Customer service and returnsAmazon handles customer service and returns for FBA orders.Returns come back to the 3PL and are handled by your rules. Customer service stays with you.
PackingPicked and packed by Amazon, to Amazon’s process.Packed to your instructions, including branded packaging and inserts.
FeesAmazon’s fulfillment fees, monthly storage charged on the space your inventory occupies, and other program fees. Amazon publishes them and changes them over time.Usually receiving, storage, a fee per order and per item, and any extra services. Ask for a line-item quote.
InventoryHeld in Amazon’s fulfillment network.Held in the 3PL’s warehouse and available to every channel you connect.
Who you talk toAmazon’s seller support.Your 3PL account team. At OC3PL, an account manager on site in Anaheim.

When FBA Alone Is the Better Answer

Being honest about this is part of choosing well.

  • Amazon is your only sales channel, and you have no plans to add your own store soon.
  • Your products need no prep beyond what you or your supplier already do.
  • The FBA fees for your products leave you a margin you are happy with.
  • You do not need branded packaging, inserts or kits on your Amazon orders.

In that situation a 3PL mostly adds a handoff. Check your numbers on Amazon’s FBA cost pages and its selling fees and estimate tools, which Amazon says let you compare FBA with your own fulfillment method.

When a 3PL Makes More Sense

  • You sell through your own store, other marketplaces, wholesale or subscriptions, and want all of them shipped from one inventory.
  • You want direct orders packed your way: branded boxes, inserts, gift notes and kits.
  • Your inventory needs prep before Amazon will take it, and you would rather not do that work yourself.
  • You want most of your stock held outside Amazon and sent in as Amazon needs it, instead of all of it sitting in Amazon’s network.

If that is you, 3PL vs in-house fulfillment helps you check whether outsourcing pays on your numbers, and how to compare 3PLs side by side helps you choose between providers.

Using Both: FBA Plus a 3PL

This is how many multichannel brands run.

Bulk inventory sits with the 3PL. Orders from your own store ship from there, and the 3PL prepares and sends replenishment shipments into FBA as your Amazon stock runs down. Amazon handles the Amazon orders; the 3PL handles everything else.

The setup works when inventory counts live in one system. Ask how stock is allocated between Amazon and your other channels before you split it. Multichannel fulfillment from one inventory pool lists what to confirm.

At OC3PL, FBA prep covers FNSKU labeling, poly-bagging, bundling and carton forwarding to Amazon, and ecommerce order fulfillment ships your direct orders from the same Anaheim building.

Checking the Costs Without Guessing

Amazon changes its fees, so this page does not quote any.

  1. Look up the current FBA fees for your products on Amazon’s FBA pages, including fulfillment and monthly storage.
  2. Estimate how many units you need in Amazon at once. Amazon charges storage on the space your inventory occupies, so less stock sitting there means less storage.
  3. Ask a 3PL for a line-item quote on the same products and volumes: receiving, storage, orders, items and any prep. See what to send a 3PL for an accurate quote.
  4. Add the cost of your own time and space if you do prep or ship direct orders yourself today.
  5. Compare the total cost per order for each channel, not one headline fee.

Amazon’s prep and labeling requirements also change. Before you send anything, check the current rules for your products in Seller Central.

Your Next Step

Where this guide leads in Choosing a 3PL.

  • FBA Prep at OC3PL

    OC3PL provides fast, Amazon-compliant FBA prep services for eCommerce brands. Labeling, bundling, poly bagging, carton forwarding, and rapid turnaround.

Common Questions

It depends on your products, their size, how long inventory sits and which channels you sell on. Amazon publishes its FBA fees and changes them over time, so check current figures on Amazon’s own pages and compare them with a line-item 3PL quote for the same products.

Yes. Many 3PLs, including OC3PL, prep inventory for Amazon (labels, poly bags, bundles) and forward cartons to Amazon’s fulfillment centers. Amazon’s prep rules change, so confirm the current requirements for your products.

Often, yes. If Amazon is your only channel and the FBA fees work for your margins, FBA alone is simpler. A 3PL starts to pay off when you add channels, need prep, or want inventory held outside Amazon.

Yes. A common setup keeps bulk inventory at the 3PL, ships direct orders from there, and sends replenishment shipments into FBA as Amazon stock runs down.

Related Reading

More detail, in OC3PL’s own guides.

  • FBA Prep at OC3PL

    OC3PL provides fast, Amazon-compliant FBA prep services for eCommerce brands. Labeling, bundling, poly bagging, carton forwarding, and rapid turnaround.

  • 3PL vs In-House Fulfillment

    Compare 3PL vs in-house fulfillment on cost, control, scalability, and technology to see which model actually saves more as your brand scales.

  • Is OC3PL Right for You?

    Who OC3PL fits, who it does not, and what to use instead: refrigerated goods, Amazon-only sellers, very low volume and multi-warehouse needs.

FBA Prep and Direct Orders From One Inventory

Tell us your channels and products, and we will tell you honestly whether FBA alone, a 3PL, or both fits your brand.

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