Amazon FBA integration that keeps every channel in sync
Your store and Amazon FBA share one live inventory. Every channel stays accurate. No oversells. No manual exports. No spreadsheets. Orders go out. Revenue stays on the table.
Simulated order stream — illustrates real-time FBA routing behavior post-integration.
Your team is the system glue. That has to stop.
From store order to FBA pick floor in under 60 seconds
Every stage is automated, monitored, and error-handled. Click any stage to see what Redefine builds at that point.
New orders, inventory edits, and product updates from your store trigger the integration in real time. Webhooks fire within 5 seconds of any change. No polling. No cron jobs.
Your store SKU maps to Amazon's ASIN and MCF product codes. We validate dimensions, weights, and addresses before anything reaches the API. Errors get caught here, not at Amazon's door.
Redefine manages your SP-API credentials, handles token refresh, respects rate limits with exponential back-off, and monitors for throttling events. Your listing health stays clean.
Amazon picks the optimal FBA warehouse for delivery speed and cost. Prime 2-day eligibility is maintained automatically. Your order acknowledgment comes back in seconds, not hours.
Shopify DTC, BigCommerce B2B, wholesale portals — all routed through your FBA inventory via MCF. One inventory pool. Unified fulfillment cost. No 3PL juggling.
Amazon's tracking number reaches your store within minutes. Customers get shipping updates from your brand, not Amazon. "Where is my order?" tickets drop right away.
The moment FBA confirms a pick, inventory drops across every connected channel. Below-threshold alerts fire before you hit zero. Your reorder decision uses real data, not a spreadsheet guess.
Your Amazon FBA integration — every layer built, owned, and watched
Bidirectional sync updates every channel within 60 seconds of any inventory event. FBA, MCF, and your store always agree on available stock.
Every order routes through FBA, MCF, or your 3PL automatically. The rules use destination, weight, cost, and shipping speed. You configure per SKU or per channel.
Monitors ASIN suppression, stranded inventory, and policy flags in real time. Alerts reach you before Amazon takes action on a listing.
The system catches FBA returns, grades them, and routes sellable units back to inventory. Restockable items reappear on every channel automatically.
Each SKU has a minimum stock level. Drop below it, and you get an alert before you run out. Connects to your supplier or 3PL to speed up reorders.
Builds your FBA inbound shipment plans with correct box weights, SKU quantities, and warehouse routing — submitted via API, not Seller Central's UI.
From zero FBA presence to unified fulfillment across every channel
A new supplement brand with zero ecommerce infrastructure. No Amazon presence. No Shopify store. No way to fulfill orders from a single pool.
No trademark, no Brand Registry, no FBA, and no shared inventory. Every order would have moved through two disconnected systems by hand.
Nutraflav launched with trademark protection, Brand Registry, and a branded Amazon storefront. Their Shopify store went live at the same time. We connected Amazon FBA and MCF so both channels fulfill from one inventory pool.
Built directly on Amazon Selling Partner API. You own the code and the credentials.
Every Redefine FBA integration connects straight to Amazon's SP-API. No third-party SaaS layer. No middleware you cannot inspect. Your data, your credentials, your integration.
Redefine handles token refresh cycles, LWA (Login with Amazon) credential rotation, and scoped permission sets. You authorize once. We maintain access indefinitely with zero manual intervention from your team.
Polls and webhooks pull Amazon orders into your integration pipeline. Order status, fulfillment confirmation, and cancellations sync back to your store in under 3 minutes. Rate limiting and back-off handled automatically.
Creates and submits inbound shipment plans via API — correct box counts, SKU quantities, prep instructions, and warehouse assignments. No manual entry into Seller Central. Estimated to save 4–6 hours per inbound cycle.
createFulfillmentOrder routes Shopify, BigCommerce, and B2B orders through FBA inventory via MCF. Carrier, service level, and delivery window are passed programmatically. Tracking numbers return automatically.
Not a plugin. Not a subscription. A custom integration you own.
| Capability | DIY / Spreadsheet | SaaS connector tools | Redefine |
|---|---|---|---|
| Real-time bidirectional inventory sync | |||
| MCF routing for non-Amazon orders | |||
| Built on SP-API (no third-party middleware) | |||
| Ongoing monitoring and error recovery | |||
| You own the codebase and credentials | |||
| Inbound shipment planning via API |
Answered directly, no sales pitch
Redefine builds integrations for Shopify, BigCommerce, WooCommerce, Magento, and headless or custom storefronts with a REST API. If your store can emit a webhook on order creation and accept an inventory update payload, we can integrate it. We do not use off-the-shelf connectors — the integration is purpose-built for your specific SKU structure and fulfillment rules.
Most standard FBA integrations go live within 5 to 8 business days after you approve the scoped proposal and sign off on your SKU-to-ASIN mapping. Complex multi-warehouse setups or MCF-only flows with custom routing rules take 10 to 14 days. We test in Amazon's sandbox environment before any live traffic touches your inventory.
All SP-API calls include exponential back-off with configurable retry limits. If the API is throttled, requests queue and retry without any order data being lost. If Amazon's API is fully down, we alert you within 5 minutes and hold orders in a safe queue until service resumes. Your store inventory is not deducted until FBA confirms the pick, preventing phantom deductions during outages.
No. The SP-API integration works with any active Seller Central account with FBA enabled. Brand Registry is recommended if you want A+ Content and full listing control, and we can help you apply for it as part of the engagement. If you have Brand Registry, we use it to access extra API permissions that give you deeper listing control.
Yes. MCF routes orders from any connected channel through the same FBA inventory pool. We build a rules engine that determines whether each order goes through FBA (Amazon marketplace), MCF (other channels), or a fallback 3PL based on the destination country, SKU, weight, and SLA you configure. Each channel gets its own routing logic.
We scope and price every line item before work starts. Typical FBA integration builds start at $3,200. Ongoing monitoring, error recovery, and API maintenance run $490/month as a retainer. No per-order fee. Your proposal shows every cost before you sign off.
Tell us your setup. We'll scope it in 3 days.
No commitment. No pitch. Submit your brief and get a line-by-line proposal in 3 business days.
We'll review your FBA setup and send a scoped proposal within 3 business days. Expect a call within 48 hours to confirm the details.
Submit your brief. No commitment. No pitch.