Amazon Warehousing and Distribution (AWD) and an independent FBA 3PL both hold bulk inventory and replenish FBA. AWD is built into Amazon's systems; a 3PL sits outside them and serves any channel. This table summarizes the trade-offs; see our longer guide for detail.
| Factor | Specialist FBA 3PL | Amazon AWD |
|---|---|---|
| Replenishment | Planned with you by SKU and days of cover | Automated replenishment within Amazon's systems |
| Prep and labeling | Hands-on prep, bundling, inserts and relabeling | Limited to what AWD supports; prep largely seller-owned |
| Channel flexibility | Ships FBA, DTC, Walmart, wholesale and retail | Primarily feeds Amazon; other channels have limited support |
| Inventory visibility | Lot, expiry and location detail from your 3PL | Visible in Seller Central alongside FBA |
| Removals and re-prep | Grades, re-preps and reinbounds returned stock | Not designed for grading or rework |
| Market choice | Choose the U.S. market that fits your import lane | Amazon chooses the facility |
| Setup effort | Onboarding and integration work up front | Native to Seller Central, quick to start |
| Best fit | Multi-channel brands needing control and prep | Amazon-only sellers wanting automation |
Choose AWD when
AWD suits sellers who sell almost entirely on Amazon, have simple prep needs and value hands-off automation over control. Its tight integration with FBA is its biggest advantage.
Choose a 3PL when
A 3PL suits brands that sell across several channels, need bundling, kitting, inserts or dated-inventory control, want to grade and reuse returns, or want to decide where inventory lives.
Using both
Some brands split inventory: a portion in AWD for automated FBA replenishment, and a portion at a 3PL for other channels, prep-intensive SKUs and overflow. That spreads risk but needs clear allocation rules.
The verdict
AWD is a strong, convenient option for Amazon-only sellers with simple products. A specialist FBA 3PL is usually the better fit when you sell on multiple channels or need hands-on prep, rework and control over your inventory.
Frequently asked questions
Is AWD cheaper than a 3PL?
It depends on your mix. Compare total cost including storage, processing, transportation, prep you still need elsewhere and the value of using the same inventory for other channels.
Can AWD ship to Walmart or Shopify customers?
AWD is designed mainly to replenish FBA. Check Amazon's current AWD terms for any multi-channel options, and expect a 3PL to be more flexible for non-Amazon channels.
Can I use AWD and a 3PL together?
Yes. Many brands keep part of their inventory in AWD and part at a 3PL, as long as allocation rules are clear.