Multi-channel fulfillment · Amazon, Shopify, Walmart, and more
Multi-Channel Fulfillment: Running Amazon, Shopify, and Walmart From One Warehouse
We fulfill Amazon FBA prep, Shopify, Walmart, TikTok Shop, and eBay orders out of one 32,000 sqft Houston warehouse, on one inventory count. No per-channel setup fee, no separate contracts — one account, one published rate card.
Free quote · Reply within one business day · No sales call
Get a fulfillment quote in 24 hours
Tell us what you sell and your monthly volume. A real person replies within one business day with exact numbers.
Before you request a quote
Know the cost. Check the fit. Plan your first shipment.
Start with a small shipment or an established operation. There is no minimum volume. Tell us what you sell so we can confirm the handling, space and shipping you actually need.
What will my first month cost?
Example: 500 single-item orders under 5 lb × $2.00 full-service handling = $1,000. At $0.25 per mailer add $125; two full billable pallet-months add $50 and one inbound pallet adds $20. Total: $1,195 BEFORE postage, returns or extra work.
Examples use standard storage in the first three months. Long-stay pallet rates are $28/month in months 3–6 and $32/month after six months. Your written quote separates receiving, storage, handling, materials and shipping. Build your own estimate.
Why are there two handling prices?
Under 5 lb, Lean FBA is $0.50/unit and Lean FBM is $1.75/order when goods arrive pre-packed and ready to label. Full-service handling is $0.75/FBA unit or $2.00/FBM order; materials and postage are separate. These are service tiers, not automatic volume discounts.
Heavier items use different weight bands; over 15 lb or bulky items need a written quote. See the complete rate card.
Can you handle my products and platform?
Share your product type, packed dimensions and weight, sales platform and expected volume. Small batches and returns-only enquiries are welcome. Batteries, liquids, food, supplements, temperature-sensitive, hazardous or oversized items need acceptance and handling requirements confirmed before you ship.
For Shopify, Amazon, Walmart or another platform such as Amboras, tell us how orders and inventory are exchanged. The team confirms the connection or file workflow before onboarding; a platform name alone does not guarantee a supported integration.
How do I send inventory?
- Send your SKU list, dimensions, weights and carton/pallet count.
- Receive the written scope, rates and product-acceptance confirmation.
- Confirm account setup, labeling and receiving instructions with the team before dispatch.
- Send shipment details and tracking; agree the first prep job or order workflow.
Receiving location: 6117 Long Dr, Houston, TX 77087. Confirm inbound instructions before sending goods.
What about shipping and storage dimensions?
For a shipping estimate, send origin and destination ZIP codes, packed dimensions, weight, parcel count and desired delivery speed. Handling prices do not include carrier postage. Storage is charged only by carton or pallet. Bin and shelf storage is included in our standard pick-and-pack rate, with no separate charge. Send product dimensions and quantities so the team can confirm usable space, availability and the applicable carton or pallet storage rate in writing.
After you enquire: a real person from our Houston team replies within one business day, confirms any missing details and sends itemized pricing. You can ask for a written quote without booking a sales call. Unsure of volume? Select “Not sure yet” in the quote form.
Why multi-channel fulfillment breaks even when every channel looks fine on its own
It breaks because the channels aren't the problem — the inventory record behind them is. Amazon shows healthy stock. Shopify shows healthy stock. Walmart shows healthy stock. But if all three are reading from the same physical pallets without one real-time count behind them, two channels will eventually sell the same unit.
We see this most with brands that grew one channel at a time: Amazon first, then a Shopify store, then a Walmart or TikTok Shop listing bolted on top. Each channel built its own mental model of "what's in stock." None of them talk to each other until an order oversells and a support ticket lands.
The fix isn't a fourth integration. It's one warehouse management system every channel reads from — KAK WMS — so "available" means the same thing whether the order came from Amazon, Shopify, Walmart, TikTok Shop, or eBay.
One rate card covers every channel — we don't price Shopify differently than Walmart
The same published rates apply whether an order came from Amazon FBM, Shopify, Walmart, TikTok Shop, eBay, BigCommerce, WooCommerce, Etsy, or Magento. Amazon FBA-bound units are priced separately because prep work — FNSKU labeling, polybagging, bubble wrap, cartonization — is different from picking and packing a direct order.
| Service | Rate | Applies to |
|---|---|---|
| Amazon FBA prep | $0.75/unit under 5 lb; materials separate | FNSKU labeling, polybagging, bubble wrap, cartonization |
| FBM/DTC order, up to 5 lb | $2.00/order | Shopify, Walmart, TikTok Shop, eBay, Amazon FBM, and other channels |
| FBM/DTC order, 5–8 lb | $2.75/order | Same channels, heavier item |
| FBM/DTC order, 8–15 lb | $4.00/order | Same channels, heavier item |
| FBM/DTC order, over 15 lb | Custom quote | Same channels, oversized item |
| Pallet storage | $25/pallet, billed monthly | Climate-controlled, shared across all channels |
| Receiving | $20/pallet ($5/carton) | Inbound stock destined for any channel |
| Returns processing | $1.50/return | Inspection included, any channel |
Packaging materials are billed at cost — standard mailers from $0.25, polybags $0.20, never marked up. Carrier labels (USPS/UPS/FedEx) are passed through at our discounted cost, no markup. Full breakdown at our price list and pricing page.
What a month actually costs running three channels out of one warehouse
Take a mid-size brand selling on Amazon, Shopify, and Walmart: 250 units/month going into Amazon FBA, 180 DTC orders/month split between Shopify and Walmart, and 6 pallets of shared inventory in storage.
| Line item | Volume | Rate | Cost |
|---|---|---|---|
| Amazon FBA prep | 250 units | $0.75/unit | $187.50 |
| Shopify/Walmart orders, up to 5 lb | 150 orders | $2.00/order | $300.00 |
| Shopify/Walmart orders, 5–8 lb | 30 orders | $2.75/order | $82.50 |
| Packaging materials | 150 mailers + 30 boxes | $0.25 / $0.40 each | $49.50 |
| Pallet storage | 6 pallets, full month | $25/pallet/mo | $150.00 |
| Receiving (one inbound shipment) | 6 pallets | $20/pallet ($5/carton) | $120.00 |
| Returns | 10 returns | $1.50/return | $15.00 |
| Total | $904.50/month |
That's the full cost of running three channels from one warehouse — no setup fees, no contracts, no minimum order commitment. Run the same math on your own volume with the pricing page.
One real-time inventory count is what keeps channels from overselling each other
We track inventory in KAK WMS as one real-time count that every connected channel reads from, instead of separate stock pools per channel that can drift out of sync. As orders come in, or units get pulled for Amazon FBA prep, the count updates for every channel — not just the one where it happened.
The dashboard runs in real time, with lot-number and expiration-date tracking available if your SKUs need it. That's the actual mechanism behind multi-channel fulfillment — not more integrations, just one honest inventory count every channel reads from.
Where multi-channel setups actually break: returns, cancellations, and bundles
Standard orders rarely cause problems — it's the exceptions. A canceled Shopify order that doesn't release its reserved unit. A Walmart return that's physically back on the shelf but still shows unavailable. A bundle that draws down three SKUs from shared stock while only one channel's dashboard notices the depletion.
We handle each the same way, regardless of which channel it came from:
- Returns — $1.50 per return, inspection included.
- Cancellations — canceled orders release the unit back to available stock in the real-time count, visible to every connected channel.
- Bundles — picked and packed per order at the standard rates above; no forced preassembly. If you want components pre-kitted ahead of demand, that's available and custom-quoted — tell us your specs and you'll have a number in 24 hours.
- Split shipments — priced per package at the applicable weight tier, same as any FBM order.
None of this requires a separate contract per channel. It's the same 32,000 sqft floor, the same team, the same inventory ledger — warehousing details here.
When to centralize channels into one warehouse — and how to tell you've already outgrown separate ones
Centralize when separate stock pools start costing you more than they save. A few signals we hear from brands right before they switch:
- You're holding back a "hidden reserve" for Amazon so Shopify doesn't oversell it.
- Customer service can't explain why a SKU is in stock on one channel and out of stock on another.
- Restocking decisions take days because nobody has one true count.
- You're paying to transfer inventory between two warehouses that should be one.
None of this requires ripping out your existing storefronts. We connect to your existing Amazon, Shopify, Walmart, TikTok Shop, and eBay accounts and read from the same warehouse count from day one.
Getting started: no minimums, no setup fee, same-day cutoff at 2pm CT
There's no minimum order volume — you can start with a single unit — and no setup fee to connect additional channels. It's month-to-month, no contracts. Inventory or orders in before the 2pm CT cutoff, Monday through Saturday, ship or get prepped the same day.
Walk-ins are welcome with 24 hours notice at 6117 Long Dr, Houston, TX 77087, Monday through Saturday, 9am–6pm CT. Every shipment we handle carries insurance coverage up to $500,000, and we're liable for our own handling. Questions before you commit — contact us, call +1 832 759 1368, or get a quote — we'll price your exact setup against the rates above.
Multi-channel fulfillment: frequently asked questions
Can one warehouse really run Amazon FBA, Shopify, and Walmart at the same time?
Do you charge extra to connect additional channels like TikTok Shop or eBay?
How is FBA prep priced differently from a Shopify or Walmart order?
What happens if Amazon and Shopify both try to claim the same unit?
How is storage billed when inventory is split between FBA-bound and DTC stock?
What does receiving cost when we're restocking multiple channels from one inbound shipment?
Are returns from different channels handled the same way?
Is there a minimum order volume to run multi-channel fulfillment with KAK?
Ready when you are
Get a fulfillment quote in 24 hours
Lean handling under 5 lb: FBA $0.50/unit or FBM $1.75/order for pre-packed goods. Full service: $0.75/FBA unit or $2.00/FBM order. Materials and postage are separate; storage is $25/pallet/month.