Clarus WMS and Cin7 Core
Integration Agency & Consultants
Stock accuracy usually breaks when inventory levels in Cin7 Core no longer match the physical reality in the Clarus warehouse. As order volume increases, this sync illusion leads to overselling and manual reconciliation debt. We build integrations that establish a clear ownership boundary between your ERP and WMS, ensuring stock truth is defended across both systems.
Scoping operational triggers and stock ownership
Before technical work begins, we diagnose the operational friction points between Cin7 Core and Clarus WMS. This discovery phase examines the triggers for order release from Cin7 to the warehouse and how physical movements in Clarus map back to Cin7 Core inventory locations. We identify current manual workarounds where data is duplicated or contradicts itself, often caused by inconsistent stock receipting. Ownership is defined here: finance must agree on how Cin7 Core handles the inventory ledger while operations confirms Clarus owns the physical execution. Skipping this leads to scenarios where stock is physically present but digitally invisible for sale. We decide the sequencing and source-of-truth rules during this phase to ensure finance and operations agree on one operating model before any code is written.
Solution Design
We design the Clarus WMS and Cin7 Core integration with a clear boundary: Cin7 Core acts as the inventory master and source of financial truth, while Clarus WMS maintains authority over physical execution. To protect inventory accuracy, a primary design decision involves the handover of Purchase Order receipts. Physical stock arrivals in Clarus must trigger inventory updates in Cin7 Core to prevent missed sales. We typically prioritise this flow on a defined schedule, accepting the trade-off of higher sync frequency to ensure stock truth. Conversely, we may batch non-critical stock adjustments to simplify reconciliation. This opinionated architecture ensures finance closes the books from Cin7 Core while operations runs the warehouse at pace in Clarus, reducing the need for manual stock reconciliations between the two systems.
Mapping data flows and synchronisation rules
The integration treats Cin7 Core as the inventory master and source of financial truth, while Clarus WMS owns the physical execution of receipts, picks, and movements. Orders post from Cin7 Core into Clarus for picking, and upon despatch, the fulfilment status flows back to Cin7 Core to trigger financial records and adjust stock levels. We prioritise the timing of these updates to prevent overselling during peak periods. High stock accuracy is maintained by ensuring exact SKU matching across both systems, with the integration layer catching mapping mismatches at the boundary. Monitoring is embedded to detect sync lag or Purchase Order receipt failures. This ensures physical warehouse activities reflect in your digital inventory on a controlled schedule rather than through manual reconciliation.
Governing data through an active layer
A controlled integration layer governs the data flow between Clarus WMS and Cin7 Core, ensuring orders, inventory levels, and fulfilment events remain synchronised. This layer is an active governance tool, not a passive pipe. It handles failure scenarios, such as preventing duplicate records if a timeout occurs or catching malformed data before it reaches the Cin7 ledger. We implement business-rule validation and a defined retry schedule to manage these issues automatically. The infrastructure adheres to security standards such as ISO 27001 and SOC 2. This environment is actively managed by consultants and operational monitoring agents, using alerting to surface issues like SKU mismatches before they impact warehouse despatches or lead to inventory drift.
Monitoring sync gaps and inventory exceptions
Dashboards alone often hide the quiet failures that erode inventory trust. A standard report might show high success rates, but the missing percentage could be a critical purchase receipt that hasn't posted, leaving you unable to sell stock you physically hold. We move beyond basic monitoring by surfacing specific operational exceptions, such as orphaned orders or rejected stock adjustments. Our approach detects these gaps by monitoring the interaction between Clarus WMS and Cin7 Core. Instead of discovering a discrepancy during a manual stock take, your team can be notified when a sync gap occurs, allowing for diagnosis and resolution before the mismatch compounds into a larger reconciliation problem.
Handing over the new operating model
Post-launch, operational adoption focuses on the finance, warehouse, and ecommerce teams. We hand over a defined operating model that dictates who owns specific data exceptions, such as a stock receipt in Clarus failing to update a Cin7 Core Purchase Order. Training covers what to check on a regular basis, including pending order syncs and inventory reconciliation logs. We ensure your team knows how to read alerts from the integration layer to resolve mapping errors or mismatched records. Documentation is provided as a plain-English operational guide for the people running the business, not a technical archive. This training is anchored in the specific design decisions made for your workflow, ensuring the team manages the data flow between Clarus WMS and Cin7 Core confidently.
Maintaining ledger accuracy and operational uptime
Ongoing support focuses on preventing operational drift between your physical stock and financial records. We monitor the integration for common failure patterns, such as orphaned shipments or inventory drift caused by mapping errors. If a sync fails, we provide the diagnostic visibility required to resolve it before it impacts your available-to-sell numbers. This prioritises the connection between Clarus WMS and Cin7 Core, identifying reconciliation gaps early so finance and operations can trust the numbers during month-end close.
Common failures
Purchase Order receipts fail to update stock levels
Operational impact: When stock scanned into Clarus WMS fails to update the available inventory in Cin7 Core, the goods are physically present but digitally invisible. This leads to unnecessary stockouts and missed revenue. It forces finance or warehouse teams into a cycle of manual reconciliation to align the two ledgers.
Prevention / Action: Treat a Goods Received event in Clarus as a mandatory transactional trigger for stock updates in Cin7 Core. Cin7 remains the master for saleable stock, while Clarus acts as the trigger. Exception reporting should flag any Purchase Order marked as received in the WMS that remains open in the ERP for more than a defined window.
Mismatched fulfilment and dispatch status
Operational impact: If Clarus confirms a partial shipment but Cin7 Core fails to receive the update, the master Sales Order stays unfulfilled. This causes customer service friction and prevents finance from recognising revenue on time. At scale, this ownership leakage creates huge reconciliation debt.
Prevention / Action: Establish a clear ownership boundary where Clarus owns the pick, pack, and dispatch execution, but Cin7 Core remains the state master. The integration must only update Cin7 once a dispatch is confirmed with a valid carrier consignment. A robust retry policy handles API downtime to prevent status drift.
Returns processing creates dead inventory
Operational impact: Items returned to the warehouse and put away in Clarus that fail to update Cin7 Core become ghost inventory. They exist on the shelf but cannot be sold. This inflates the value of unsaleable stock and delays customer refunds, damaging brand trust.
Prevention / Action: Map Clarus disposition codes directly to inventory locations or statuses in Cin7 Core. A Put Away scan in the WMS should automatically trigger a stock-in transaction against the relevant Credit Note in the ERP to ensure the financial and physical records stay in step.
Product master data inconsistencies
Operational impact: If a new SKU is created in Cin7 Core with a barcode or weight mismatch, Clarus will not recognise it. Inbound shipments will be blocked and orders will fail to pick. This creates an immediate workflow fracture that requires manual data correction before operations can resume.
Prevention / Action: Enforce a strict policy where Cin7 Core is the sole master for item data. The integration should validate that a SKU is active in both systems before it can be added to a Purchase Order or Sales Order. Weekly automated audits should flag any attribute drift between the two catalogues.
Frequently asked questions
Which system acts as the master source of truth for inventory?
Cin7 Core is typically configured as the single source of truth for available-to-sell quantities. Clarus WMS manages the physical, bin-level inventory and executes the movements. For instance, a Purchase Order receipt in Clarus triggers a stock adjustment that updates the master record in Cin7 Core, making the items available for sale across your channels.
What happens if a goods receipt in Clarus fails to update Cin7 Core?
This creates a disconnection between physical stock and sellable stock. If the adjustment from Clarus does not post to Cin7 Core, those SKUs appear out of stock even while sitting in the warehouse. This leads to missed sales and requires the operations team to manually bridge the gap.
How do we avoid manual stock reconciliation between systems?
The integration prevents operational drift by using transaction-based updates. Every pick in Clarus WMS or return put-away generates a specific message to update Cin7 Core on a defined schedule. This avoids the need for weekly manual true-ups of inventory data.
How does a Sales Order from Cin7 Core get fulfilled?
Once a Sales Order is finalised in Cin7 Core, it is pushed to Clarus WMS as a fulfilment request. The warehouse team picks, packs, and dispatches the order. Clarus then sends an item fulfilment notification back to Cin7 Core to close the order and update the inventory levels, keeping the order-to-cash process synchronised.