Connect Amazon Marketplace to your 3PL warehouses.

Spacefill synchronises Amazon orders, inventory and shipment tracking with the WMS of your logistics partners in real time, without technical integration on your side.

Why Spacefill for Amazon

The fastest way to connect Amazon to your warehouse operations

Real-time sync, both ways

Orders, inventory, shipments and cancellations flow between Amazon SP-API and your 3PL's WMS within seconds — no CSV, no FTP, no missed updates.

Works with your 3PL's WMS

We've pre-integrated with 40+ warehouse management systems — Manhattan, Reflex, Infolog, Generix, SAP EWM and more. Your 3PL keeps its tools, you keep your customers.

Live in 2 to 3 weeks

No technical work on your side. Our team handles the SP-API credentials, mapping, testing and go-live. A named project manager sees you through until the first shipment.

Order synchronisation

Every Amazon order, automatically routed to the right warehouse.

Spacefill pulls your orders from Amazon SP-API as soon as they are paid, enriches them with your business rules, and pushes them to the WMS of the 3PL that should fulfil them.

✅ Automatic download from Amazon NA, EU, UK and JP marketplaces
✅ Smart routing by SKU, region, stock availability or SLA
✅ Cancellations, edits and address updates propagated both ways
✅ Splits, holds and custom folders for any exception workflow

Shipment confirmation & fulfilment models

Tracking uploaded to Amazon the moment the parcel leaves the warehouse.

Spacefill captures carrier tracking numbers from your 3PL and pushes shipment confirmations back to Amazon in real time — protecting your seller metrics and delighting your buyers.

✅ FBM (Fulfilled by Merchant) — shipped from your own or 3PL warehouses
✅ FBA inbound — prepare and send shipments to Amazon fulfilment centres
✅ MCF — use Amazon's fleet to fulfil orders from other channels
✅ Valid Tracking Rate (VTR) and on-time delivery metrics improved out-of-the-box

Inventory sync

Real-time stock levels. No overselling on Amazon.

Spacefill aggregates the live stock of every warehouse in your network and pushes accurate inventory feeds to Amazon — so your listings reflect reality, down to the SKU.

✅ Multi-warehouse inventory consolidated into a single feed per marketplace
✅ Safety stocks, buffers and reserve rules per channel
✅ Forecasted stock view for inbound ASNs and returns
✅ Low-stock alerts and automated replenishment triggers

Complete feature set

Everything you need to run Amazon operations at scale

Returns management

Synchronise Amazon RMAs with your warehouse, receive returns, trigger refunds and update stock — all automated from a single console.

Reporting & KPIs

On-time delivery, cancel rate, Valid Tracking Rate, warehouse performance — live dashboards you can share with your 3PLs and stakeholders.

Smart order routing

Route every order to the optimal warehouse based on stock, zone, SLA, cost or custom logic. Fail-over rules kick in automatically when a location is down.

Dispute & SLA management

Centralise every event, shipping proof and communication per order. Defend your A-to-Z claims and seller metrics with a full, timestamped audit trail.

Ready to automate your Amazon fulfilment?

Get a fixed quote in 24 hours and go live in 2–3 weeks — with no integration work on your side.