503 PREP
FBA prep, bundling, and FBM order processing since 2017.
Seller Assistant is a sourcing platform for Amazon wholesale and online arbitrage sellers. Connect 503 PREP to send your purchase orders to it in one click.
Locations
- Salem, OR No sales tax
Browse prep centers in Oregon
Services
- FBA prep
- Receiving, inspecting and packing your inventory to Amazon FBA requirements.
- FBM fulfillment
- Packing and shipping your own (merchant-fulfilled) orders straight to customers.
- Storage
- Holding your inventory between shipments, so you can send to Amazon in batches.
- Returns
- Receiving customer returns and Amazon removals, inspecting and restocking them.
- FNSKU labeling
- Printing and applying the Amazon FNSKU barcode to each unit.
- Bundling and kitting
- Combining several items into one sellable bundle or set.
- Pallets and LTL
- Building pallets and booking LTL (less-than-truckload) freight to Amazon.
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From supplier price list to your prep center
- 1
Find products
Upload a supplier price list. Seller Assistant checks every item for profit, sales and Amazon restrictions.
- 2
Buy them
Turn your picks into a purchase order for the supplier, with cost and profit per unit.
- 3
Send to prep
Send the order to 503 PREP as an inbound shipment in one click.
14-day risk free trial. Cancel anytime.
More prep centers in the United States
FBA prep centers in the United States
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Parcel-level FBA prep in 24 to 48 hours, with a photo of every batch.
HexPrep
FBA and WFS prep, FBM and D2C orders, and two-step dropshipping.
McKenzie Services
FBA prep and DTC orders with 2,500+ pallet positions of storage.
Not sure which plan fits your sourcing workflow? Chat with our team — we're happy to help.