Walmart Fulfillment Services has its own prep, labeling and inbound rules. We prepare inventory to those requirements and build WFS shipments from the same inventory pool that feeds Amazon FBA.
How WFS prep differs from FBA prep
The biggest difference is item identification. Walmart Fulfillment Services receives items by their GTIN, typically the UPC, rather than a marketplace-specific label like the FNSKU. That means the barcode on the unit must match the item setup in Seller Center, and an FNSKU label left over from Amazon prep will cause problems at a Walmart receiving dock.
Packaging expectations are broadly similar, covering sealed bags, protection for fragile items and containment of sets, but the details and the inbound process differ. We keep a separate work instruction for WFS so a SKU prepped for both channels is finished correctly for each.
WFS inbound orders and carton labels
WFS shipments begin as inbound orders created in Seller Center, which assign destination fulfillment centers. Each carton needs the correct WFS carton label, and cartons and pallets must meet Walmart's size, weight and labeling specifications.
We build shipments to match the inbound order, apply carton labels, confirm quantities against the order and ship with the carrier option you choose. Discrepancies between the inbound order and what is physically on hand are reported before release, because receiving discrepancies in WFS can delay the entire shipment.
Running Amazon and Walmart from one inventory pool
Many sellers expand to Walmart with the same products they sell on Amazon. Keeping separate inventory at separate prep providers splits your stock, doubles receiving and makes allocation slow.
With Prep Center Co., one inbound can be allocated between FBA and WFS. Units stay in a neutral state, with manufacturer barcodes intact, until you decide where they go. Then they are finished with an FNSKU for Amazon or left on GTIN for Walmart. This approach lets you shift stock toward the channel that is selling through faster without paying to undo prep.
Common WFS prep mistakes to avoid
The mistakes we see most often are FNSKU labels on WFS units, missing or unreadable GTINs, multipacks without a dedicated GTIN for the pack, and cartons whose contents do not match the inbound order.
Each one is preventable at the prep bench. We verify that every unit's barcode scans to the correct WFS item before packing, confirm that multipacks carry the pack-level GTIN and cover the individual unit codes, and reconcile cartons against the inbound order. If your item setup in Seller Center needs fixing first, we tell you before the shipment is built.
What's included
- GTIN verification against Seller Center item setup
- Multipack GTIN labeling with unit codes covered
- WFS carton and pallet labels
- Inbound order reconciliation
- Shared inventory with Amazon FBA prep
- Packaging to WFS item requirements
- Carrier booking or seller-arranged freight
Frequently asked questions
Does Walmart WFS use FNSKU labels?
No. WFS identifies items by GTIN, usually the UPC. Units sent to WFS should not carry an Amazon FNSKU label, and the GTIN must match the item set up in Seller Center.
Can you split one shipment between Amazon and Walmart?
Yes. We receive once, keep units in a neutral state, and finish them for FBA or WFS according to your allocation.
Do multipacks need their own GTIN on Walmart?
Yes. A multipack sold as one item needs its own GTIN, and the individual unit barcodes should be covered so only the pack code scans.
Who creates the WFS inbound order?
You create inbound orders in Seller Center, or authorize a user to do it. We build the physical shipment to match and report any discrepancy before release.