Clarus WMS connects directly to Amazon so ecommerce and operations teams can manage orders, stock and despatch from one place. The integration is designed to be predictable, easy to set up and transparent for day-to-day control. Once connected, orders, tracking and inventory sync automatically between Clarus and Amazon, and label data and order line details are shared to keep both systems aligned. There is no third-party middleware or coding required.
What are WMS integrations with Amazon and how does Clarus support them?
A WMS integration with Amazon links your warehouse management processes to your Amazon sales channel. The goal is straightforward, sales orders raised in Amazon arrive in the WMS in a structured format, you allocate inventory and pick, pack and ship in Clarus, and the outcomes flow back to Amazon with tracking and stock updates.
Clarus WMS supports this model in a clear, reliable way:
- Sales order pass-through from Amazon to Clarus
New Amazon customer orders are passed into Clarus WMS so your team can manage them alongside orders from any other connected channels. Order headers, shipping service selections where applicable, and line-level details are included so the order is ready for allocation and fulfilment. - Allocate by quantity in Clarus
Operations teams can allocate stock in Clarus by quantity at order or line level, following your chosen picking rules. This lets you control exactly what is committed to each Amazon order before work starts on the floor. - Label data and sales order line information shared
Clarus exchanges required label data points and maintains line-level order information so the labels you print and the confirmations you send reflect the exact contents picked and packed. - Orders, tracking and inventory sync after connection
Once the connection is live, Clarus keeps Amazon updated with shipment confirmations, tracking numbers where used, and available inventory levels, which helps prevent overselling and keeps listings accurate.
The result is a WMS-led workflow for Amazon that is simple to understand and simple to operate. Clarus focuses on the core data that warehouse teams rely on every day, with the level of control operations leaders expect.
How does Clarus manage order and inventory syncing with Amazon?
Clarus WMS maintains a regular sync for the key elements that matter most, orders in, inventory and tracking out. The flow is intentionally straightforward, which helps with predictability and supportability.
Inbound into Clarus WMS
- Amazon sales orders arrive in Clarus with customer details, shipping speed or service flags where applicable, and full line items with quantities.
- Order statuses are mirrored in Clarus so you can identify new, in progress and completed orders in one view.
Within Clarus WMS
- Allocation by quantity is performed in Clarus. You can allocate entire orders or specific lines, using your internal rules for location priority, wave picking or single order picking as appropriate to your operation.
- Picking and packing is executed inside Clarus using your configured workflows and scanners where used.
- Label generation is supported with the label data that is shared between systems so labels match the order lines you have committed.
Outbound back to Amazon
- Shipment confirmations are posted to Amazon with tracking numbers where available, keeping buyers informed and closing out the order in the channel.
- Inventory levels are updated to reflect stock on hand after picks and receipts, helping keep Amazon listings accurate.
- Order line fidelity is preserved, the details you fulfil are the details that sync back.
Clarus keeps the sync focused on the essentials. This reduces complexity, and it makes the integration easier for teams to run at scale.
Is any development work needed to set up WMS integrations with Amazon?
No coding is required to connect Clarus WMS to Amazon. The integration is provided natively, so you do not need middleware, custom scripts or a systems integrator for a standard deployment. Configuration is handled inside Clarus with your Amazon account credentials and a small number of operational preferences, for example how you want to allocate by quantity and which shipping services you plan to use.
If you have internal controls around environments and change windows, Clarus follows them. The connection can be established in a test environment first, then promoted to live when you are ready.
What’s the fastest way to connect Clarus WMS to Amazon?
Getting started is simple and can be completed in a short session. The steps are:
- Connect your Amazon account to Clarus
Use your Amazon credentials to authorise Clarus WMS. Clarus will confirm the connection and check that order import and stock export permissions are in place. - Orders, tracking and inventory begin syncing
After authorisation, Clarus starts to bring new Amazon orders into your dashboard. When you ship from Clarus, tracking and shipment confirmations are sent back to Amazon, and inventory levels update accordingly. - Manage everything from one dashboard
Use Clarus to allocate by quantity, run picks, generate labels and complete shipments. Monitor order status and stock positions across all connected channels in one place.
No third-party middleware is required and there is no custom code to maintain. If you need help, the Clarus team can guide you through these steps.
How does Clarus handle labels, tracking and shipment updates with Amazon?
Labels, tracking and shipment confirmations are central to a clean Amazon workflow. Clarus WMS keeps this simple:
- Label data in, labels out
Clarus shares and stores the required label data fields alongside the sales order lines. This means that when you print labels in or alongside Clarus, the correct recipient, service and package details are present and consistent with the order. - Tracking numbers returned to Amazon
When a shipment is completed in Clarus, the tracking number you capture is sent back to Amazon with the shipment confirmation. Buyers see the update, and your Amazon order status reflects the fulfilment event. - Line-level accuracy
Shipment confirmations align to the order lines you actually picked and packed, which helps keep reporting and customer messaging accurate.
If you use multiple carriers, Clarus supports recording the service used and the tracking reference so your Amazon updates remain precise.
Can Clarus allocate stock by quantity for Amazon orders?
Yes. Clarus WMS allows you to allocate by quantity at the level that suits your process. You can allocate an entire order in one action or allocate specific line quantities based on stock availability and operational priorities. This helps you:
- Control which orders are committed first, for example by promised ship date or service level.
- Split work across waves or batches while keeping inventory reservations accurate.
- Avoid accidental over-allocation by making quantity-based commitments explicit in the WMS.
Allocation is visible to your team in the Clarus dashboard so floor managers and supervisors can see what is committed, what is in picking and what remains open.
What operational visibility does Clarus WMS give me for Amazon fulfilment?
The integration is designed so that operations leaders can monitor Amazon work alongside any other connected channels without switching tools.
- Unified order board shows new and in-progress Amazon orders, with filters for date, status and shipping service.
- Stock views let you see available, allocated and on-hand quantities so you can make allocation decisions confidently.
- Exception visibility highlights orders that cannot be allocated by quantity because of stock shortfalls, so you can reallocate or prioritise replenishment.
- Tracking and despatch reporting provides a clear view of completed shipments, carrier performance where tracked and confirmation status back in Amazon.
This level of transparency reduces back and forth between systems and keeps your team aligned during busy periods. Any time-saving figures would vary by operation, so treat them as estimates, however most teams find it quicker to work from one WMS dashboard once the integration is live.
How does inventory synchronisation work across Amazon and other channels?
Clarus WMS is the source of truth for stock on hand inside the warehouse. After you connect Amazon, Clarus posts inventory updates back to the channel so available quantities remain accurate. When you pick, pack and confirm shipments in Clarus, on-hand and available levels are adjusted, then the updated numbers are synced to Amazon. If you also connect other channels, Clarus applies the same approach for each connection, which helps prevent oversell events.
If you operate multiple locations, Clarus can reflect location-specific inventory where configured, then sync the relevant totals to Amazon in line with your listing strategy.
What data is exchanged between Amazon and Clarus WMS during the order lifecycle?
The integration focuses on the data that warehouse and customer service teams use every day:
- From Amazon to Clarus
Sales order headers, customer and delivery details, shipping service flags where available, order line items with SKUs and quantities, and purchase notes that are relevant for fulfilment. - Within Clarus
Allocation by quantity, pick confirmations, pack confirmations, label data fields associated with each parcel, and tracking references. - From Clarus to Amazon
Shipment confirmations with tracking numbers, line-level fulfilment details, and inventory availability updates.
By concentrating on these fields, the integration stays stable and predictable, and it aligns to how warehouse teams actually work.
Are there controls for partial shipments and changes before despatch?
Yes. In many operations, partial shipments are necessary to meet service levels. In Clarus, you can allocate and ship what is available by quantity, then complete the remainder when stock arrives. Clarus syncs what was shipped to Amazon with accurate line-level detail, and inventory updates reflect the change. If order details change before despatch, for example an address edit in Amazon or a quantity adjustment, Clarus will receive the updated order data and show it to your team so you can act accordingly.
How do I operate day to day once Clarus and Amazon are connected?
Daily work can be managed from the Clarus dashboard:
- Review incoming Amazon orders and filter by service or promised date.
- Allocate by quantity to commit stock to the orders you plan to pick.
- Run picking using your preferred method, single order, batch or wave.
- Pack and label with label data shared between Clarus and Amazon so labels are correct.
- Confirm despatch to push tracking and shipment updates to Amazon.
- Monitor inventory to keep on-hand and available levels accurate across all channels.
This workflow keeps the WMS at the centre of fulfilment while ensuring the Amazon channel stays in sync.
Implementation considerations for technical buyers
Technical stakeholders often need clarity on boundaries and support. The Clarus WMS integration with Amazon is delivered natively, which reduces moving parts. There is no external middleware to host, no custom code to maintain for a standard deployment and no separate integration vendor to manage. Access control, audit and environment separation are handled within Clarus. You can connect a staging account first if required, prove the flow, then connect your live account once satisfied.
For reporting and analytics, Clarus exposes the operational data in its own dashboards. If you maintain a data warehouse, you can export operational data from Clarus and reconcile it with your channel reporting. The Amazon integration keeps the warehouse source of truth intact and avoids duplication of logic.
Want a WMS that integrates directly with Amazon?
Clarus WMS integrates with Amazon so you can manage orders, inventory and despatch in one place. Connect your Amazon account to Clarus, let orders, tracking and inventory sync, and run fulfilment from a single dashboard. If you would like to see the flow end to end, request a demo and we will walk through the setup and a typical picking and packing cycle.
FAQs
What data syncs between Clarus WMS and Amazon?
Clarus receives sales orders from Amazon with customer, shipping and line-level details. Clarus returns shipment confirmations with tracking numbers and updates inventory availability. Label data and order line information are shared so labels and confirmations match what was packed.
Can I allocate inventory before sending orders?
Yes. Allocation by quantity happens in Clarus WMS. You can allocate entire orders or specific lines before picking, which reserves the stock and avoids accidental double allocation.
How often do updates sync between systems?
Orders, tracking and inventory sync once the connection is active. The cadence is designed for day-to-day operations, with shipment confirmations and tracking posted after despatch, and inventory updates following fulfilment events. If you need precise intervals, the Clarus team can confirm them for your account.
Do I need a developer to manage the integration?
No. The integration is provided natively in Clarus WMS. You connect your Amazon account, set your preferences and begin syncing. There is no third-party middleware or custom code for a standard setup.
What happens if order details change after syncing?
If an order is updated in Amazon before despatch, Clarus receives the change and shows the updated data in your dashboard. You can then adjust allocation by quantity or packing as needed. When you complete the shipment in Clarus, the final status and tracking are sent back to Amazon with the correct line-level detail.
Clarus WMS provides a dependable integration with Amazon that focuses on the essentials, sales orders in, allocation by quantity, labels and tracking out, and inventory kept in sync. The setup is simple, the controls are clear and the daily workflow is designed for warehouse teams. If you are evaluating WMS integrations with Amazon and want to see how Clarus works in your operation, book a session and we will show you the process from connection to despatch.