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

Amazon only, your own store, or both.
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.
Neither column wins every row. What matters is which rows matter to you.
| Question | Amazon FBA | A 3PL |
|---|---|---|
| What it is built for | Orders 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. |
| Prime | Amazon 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 returns | Amazon 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. |
| Packing | Picked and packed by Amazon, to Amazon’s process. | Packed to your instructions, including branded packaging and inserts. |
| Fees | Amazon’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. |
| Inventory | Held in Amazon’s fulfillment network. | Held in the 3PL’s warehouse and available to every channel you connect. |
| Who you talk to | Amazon’s seller support. | Your 3PL account team. At OC3PL, an account manager on site in Anaheim. |
Being honest about this is part of choosing well.
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.
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.
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.
Amazon changes its fees, so this page does not quote any.
Amazon’s prep and labeling requirements also change. Before you send anything, check the current rules for your products in Seller Central.
Where this guide leads in Choosing a 3PL.
OC3PL provides fast, Amazon-compliant FBA prep services for eCommerce brands. Labeling, bundling, poly bagging, carton forwarding, and rapid turnaround.
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.
More detail, in OC3PL’s own guides.
Every guide for choosing a 3PL, grouped by where you are in the search.
OC3PL provides fast, Amazon-compliant FBA prep services for eCommerce brands. Labeling, bundling, poly bagging, carton forwarding, and rapid turnaround.
Running a storefront and two marketplaces from one stock pool: how allocation works, what breaks when you split inventory per channel, and what to confirm before you do.
Compare 3PL vs in-house fulfillment on cost, control, scalability, and technology to see which model actually saves more as your brand scales.
Who OC3PL fits, who it does not, and what to use instead: refrigerated goods, Amazon-only sellers, very low volume and multi-warehouse needs.
Tell us your channels and products, and we will tell you honestly whether FBA alone, a 3PL, or both fits your brand.