Linnworks and Seko
Integration Agency & Consultants
Cogent2 uses AI-powered delivery and experienced operators to forge the critical link between Linnworks and Seko. As sales volume increases, this connection prevents the fulfilment timing and inventory accuracy issues that erode margin. Teams gain confidence in their stock data, and customer complaints about late deliveries finally stop.
Scoping for multichannel retail strategy
Integrate seamlessly with Linnworks and Seko to enhance your multi-channel and omnichannel retail strategy. Our expertise ensures quick connectivity and efficient system management. Leverage our consulting and delivery skills to boost operational efficiency and tech stack performance. We provide comprehensive training to help you scale rapidly and achieve unified retail success.
Solution Design
Design for Linnworks and Seko prioritises inventory accuracy and fulfilment speed. Linnworks typically acts as the system of record for order management, while Seko provides the authoritative stock levels. A key design decision involves the frequency of stock syncs. Depending on the operating model, we may choose to batch stock updates to protect system stability during high-volume periods rather than chasing real-time perfection which can lead to sync fragility. Despatch notes are sequenced to flow back to Linnworks as soon as Seko confirms a pick to trigger customer notifications. This design ensures finance closes the month with reconciled shipping costs while operations relies on accurate warehouse availability. The result is an architecture that balances reporting lag against the need for high-volume stability.
Mapping the order and ASN lifecycle
The integration manages the lifecycle of an order from Linnworks to the Seko warehouse and back. Linnworks acts as the central hub, pushing sales orders to Seko for fulfilment. Once Seko confirms picking and packing, the fulfilment status and tracking data flow back to Linnworks to update the sales channel. Inventory levels are synchronised on a defined schedule to ensure Linnworks reflects Seko's physical stock, preventing overselling across marketplaces. We embed monitoring at each stage to detect when orders fail to reach the warehouse or tracking numbers fail to post. This ensures data integrity and reduces the manual effort required to keep warehouse operations and customer service in sync.
Orchestrating workflows through automated IPaaS
Cogent2 uses IPaaS to seamlessly integrate Linnworks and Seko, enabling efficient data flow and process automation. Benefits include reduced manual work, faster implementation, improved scalability, and enhanced data accuracy, leading to streamlined operations and better decision-making for integration agency and consultancy services.
Surfacing hidden exceptions and data drift
Dashboards often hide the issues that matter most, such as partial stock sync failures or orphaned orders. We focus on surfacing exceptions where the data between Linnworks and Seko has drifted. Our platform monitors the health of the integration, alerting teams when an order is stuck in a 'pending' state or when Seko stock levels fail to update Linnworks. Instead of waiting for a customer complaint or a warehouse discrepancy at month-end, these hidden issues are identified early. This level of visibility allows operations and finance teams to solve problems before they impact the bottom line or the customer experience.
Defining operational ownership and handover
Handover ensures finance, operations, and CX teams own the Linnworks and Seko operating model. Training focuses on where data objects reside and what to check daily to maintain stock integrity. Your operations team learns to manage pick and pack exceptions, while finance understands how to reconcile Seko fulfilment logs against Linnworks order history. CX teams are shown how to interpret shipping status alerts to manage customer expectations. We provide operational documentation written for the people running the business, rather than technical archives for IT. This ensures every team knows who owns each exception type and how to respond when sync delays occur, maintaining control after Cogent steps back.
Managing long term sync health
Support focuses on maintaining the operational health of the connection between Linnworks and Seko. We take ownership of the integration layer, monitoring for sync failures and data mismatches that could disrupt your warehouse. Issues are handled through a defined escalation process, ensuring that critical fulfilment delays are prioritised and resolved. This is not just technical troubleshooting; it is about ensuring your orders move and your stock remains accurate. We provide ongoing visibility into the health of your flows, so your team can focus on operations while we manage the integrity of the data shift.
Common failures
Inventory latency and overselling
Operational impact: Stock level updates from Seko are delayed or batched, so the inventory figure in Linnworks does not reflect warehouse reality. This results in overselling popular SKUs, creating negative customer experiences and manual work for the CX team to cancel and refund Sales Orders. It can also cause underselling if Linnworks holds back stock that is actually available.
Prevention / Action: The integration must treat Seko as the clear source of truth for physical stock levels. Inventory adjustments from Seko should be processed as soon as they are received via webhook or frequent delta-based polling. This design avoids long processing queues and ensures the stock level for each SKU in Linnworks is consistently synchronised.
Order cancellations are not processed in time
Operational impact: An order is cancelled in Linnworks, but the instruction does not reach Seko before the warehouse team starts picking the items. The order is dispatched, leading to wasted shipping costs, a poor customer experience, and more work for CX and finance teams who must manage the subsequent return and refund. At scale, this directly erodes profit margins.
Prevention / Action: Before attempting to send a cancellation, the integration should first query the live order status in Seko. A clear cut-off point, such as Seko's 'Picking' status, must be agreed with the operations team. If an order has passed this point, the integration should prevent the cancellation and flag it for a standard customer-initiated return process instead.
Product data mismatch prevents order creation
Operational impact: A new product is active in Linnworks, but the corresponding SKU does not exist in Seko's WMS when a Sales Order is sent. The order injection fails and enters an error queue, halting fulfilment. This creates silent delays that are only discovered when customers enquire about their orders, requiring manual effort from the ops team to create the SKU in Seko and re-process the order.
Prevention / Action: Establish Linnworks as the master system for item records and enforce a strict creation sequence. New SKUs must be successfully created and confirmed in Seko before they are published to any sales channel. The integration must include monitoring to halt orders containing unrecognised SKUs and alert the operations team to resolve the underlying data gap.
Incomplete dispatch confirmations
Operational impact: Seko's system sends a shipment confirmation, but it is missing the carrier tracking number or uses a carrier service name that isn't mapped in Linnworks. This prevents Linnworks from automatically marking the order as dispatched and sending the shipping notification to the customer. The fulfilment or CX team must then manually locate the tracking data and update the Sales Order, delaying communication.
Prevention / Action: Define a strict data contract for the shipment confirmation feed, making fields like tracking number and carrier service code mandatory. The integration should use a mapping table to translate Seko's carrier codes into the corresponding values Linnworks expects. Any inbound shipment record that fails this validation should be moved to an exception queue for immediate operational review.
Bundle composition mismatch
Operational impact: A 'bundle' parent SKU is sold via a sales channel and the order flows into Linnworks correctly. However, Seko's WMS is configured to pick individual component SKUs, not parent bundle SKUs. The order fails validation in Seko because the SKU is unrecognised, halting fulfilment and requiring the operations team to manually 'explode' the order into its constituent parts.
Prevention / Action: The integration logic must align with Seko's handling of kits. If the WMS requires component SKUs for picking, the integration must transform any Sales Order line containing a parent bundle SKU into multiple lines for each component SKU. This requires Linnworks to be the definitive source of truth for bundle composition and for the transformation to occur before the order is sent to Seko.
Frequently asked questions
What happens if a customer cancels an order after it has been sent to Seko for fulfilment?
If an order is cancelled in Linnworks after Seko has begun processing it, the cancellation may fail to prevent shipment. This often results in the order being picked and despatched by Seko, leading to wasted shipping costs and a poor customer experience. A well-designed integration accounts for this with a clear cut-off point for automated cancellations.
How does the integration keep inventory levels accurate between Linnworks and Seko?
Linnworks typically acts as the master record for saleable stock, based on data synchronised from Seko's warehouse management system. Stock level adjustments from goods-in, cycle counts, or disposals at Seko are fed back to update item records in Linnworks. Without this, Linnworks could reflect incorrect availability, causing you to oversell a SKU or miss sales on items that are physically in stock.
When Seko despatches an order, how quickly is the fulfilment status updated in Linnworks?
The timing depends on the integration method, as Seko can provide despatch confirmations via files or webhooks. Any delay in updating the Sales Order in Linnworks with the tracking number and 'shipped' status means your customer service team cannot see the order's real status. This also holds back the automated despatch confirmation emails that customers expect.
Our month-end reports show growing stock discrepancies. How does this integration address that?
This is a primary driver for integrating Linnworks and Seko, as manual processes often miss crucial inventory events. The integration automates the flow of stock adjustments for returns, damaged goods, and cycle counts from Seko back into Linnworks. This ensures the inventory value reflected in your item records is a reliable figure for the finance team's month-end stock reconciliation.