Troubleshooting Common Issues in Unleashed-Linnworks Integration
Introduction: When Integrations Don’t Play Nice
The Reality of Integration Challenges
Ever had two apps that are supposed to work together, but end up acting like squabbling siblings? That’s how it feels when your Unleashed Software subscription and Linnworks stop syncing nicely. Suddenly, stock levels go rogue, orders vanish into thin air, and your “automated” system needs constant babysitting.
But here’s the short answer: most of these issues are fixable—and preventable—with the right tools and know-how.
💡 Struggling with repeated sync errors or API frustrations?
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A Structured Approach to Troubleshooting
Integration problems can snowball if left unchecked. Instead of guessing what’s gone wrong, we’ll walk you through a smart, structured way to isolate issues and solve them step-by-step. Plus, we’ll show you how TIDE can act as your digital glue—keeping Unleashed, Linnworks, and other systems talking clearly and consistently.
Category 1: Product Data Sync Issues
Problem: Products Not Syncing from Unleashed to Linnworks
Solution: Check SKU Consistency, Verify Product Status (Active), Review Unleashed Integration Logs for Errors
Let’s start with the basics. If products aren’t syncing at all, check if the SKUs match across platforms—one missing dash can throw the whole thing off. Ensure each item is marked as “Active” in Unleashed, then dig into the integration logs for any buried clues.
With TIDE, you can get real-time alerts for sync failures and use smart monitoring to pinpoint what broke—before it snowballs into customer complaints.
Problem: Incorrect Product Information (Price, Description) on Channels
Solution: Confirm Unleashed as Data Master, Re-check Linnworks Product Mapping, Force Sync
If prices or product descriptions look wrong across channels, you might be facing a tug-of-war between data sources. Make sure Unleashed is set as the master system. Then review Linnworks’ mapping settings and initiate a clean sync.
TIDE makes this easier by allowing flexible rule-based mapping between systems, so your data flows the way you need it to—accurately and automatically.
Problem: Duplicate Products Created
Solution: Ensure Unique SKUs, Review Initial Sync Settings, Cleanse Duplicates
Duplicate listings? Welcome to confusion city. These usually show up when SKUs aren’t unique or when sync settings are too aggressive during setup. Use Unleashed and Linnworks settings to clean things up.
Better yet, TIDE includes built-in safeguards that detect and prevent duplicate creation before it reaches your sales channels.
Category 2: Inventory Sync Discrepancies
Problem: Overselling or Underselling
Solution: Verify Real-Time Sync is Active, Check Unleashed Stock Levels, Review Linnworks Channel Configuration, Look for API Rate Limits
Stock issues often come down to slow or failed syncs. Double-check that your real-time sync is active and not being throttled by API rate limits. Review your stock in Unleashed and your channel configuration in Linnworks.
Here, TIDE shines—it not only tracks sync frequency but also balances data loads to stay within API limits, so your stock stays accurate across every channel.
Problem: Stock Not Updating After Sales/Returns
Solution: Confirm Order Status Updates are Flowing Correctly, Check Unleashed Stock Adjustments
Returns and sales should automatically adjust stock—but only if order statuses update properly. If there’s a gap, stock won’t shift in Unleashed, and you’ll end up with a mess.
TIDE gives you visibility across workflows, alerting you when critical handovers like order returns go missing in action.
Problem: Stock Levels Incorrectly Decrementing/Incrementing
Solution: Review Order Fulfillment Workflow, Check for Manual Adjustments
Sometimes your automation rules and manual updates clash. Make sure everyone is following the same workflow and avoid manual overrides unless absolutely necessary.
TIDE helps by logging every stock change event, so you can audit and trace discrepancies quickly.
Category 3: Order Processing and Fulfillment Issues
Problem: Orders Not Pulling from Linnworks to Unleashed
Solution: Check Linnworks Order Status (Processed), Verify Unleashed Integration is Active, Review Connectivity
Linnworks won’t push orders unless they’re marked as “Processed.” If your orders are stuck, that’s step one. Also, confirm the integration status in Unleashed and check if the API connection is still alive.
TIDE continuously monitors these integration touchpoints and notifies you if something breaks—before fulfilment grinds to a halt.
Problem: Order Status Not Updating in Sales Channels
Solution: Confirm Linnworks is Pushing Status, Check for Carrier Integration Errors, Review API Connectivity
If your customers are stuck wondering where their order is, you’ve got a sync issue. Make sure Linnworks is pushing updates and that your shipping integrations are still intact.
TIDE centralises these handoffs and provides fail-safe logic to keep customer-facing updates flowing—no more “where’s my order?” emails clogging your inbox.
Problem: Shipping Errors/Incorrect Labels
Solution: Verify Shipping Method Mapping in Linnworks, Check Customer Address Data Quality
Check that your shipping method mapping matches real-world carriers and that your address data is clean. Mistakes here create delays and annoyed customers.
TIDE allows you to validate shipping fields across both systems, catching errors before they affect delivery.
Category 4: Connectivity and Authentication Problems
Problem: Integration Disconnecting or Failing
Solution: Check API Key Expiry/Revocation, Verify Network Connectivity, Review Firewall Settings
If the connection drops out of nowhere, start by checking if your API key has expired or been revoked. Then look at your network/firewall settings—especially after IT pushes an update.
TIDE comes with integration health checks that continuously verify API connections and notify you instantly if something breaks.
Problem: Authentication Errors
Solution: Re-enter Credentials, Confirm User Permissions
A typo in your login or expired credentials can break the whole pipeline. Recheck them, and verify that user permissions allow for integration-level access.
TIDE keeps a secure vault of integration credentials and flags permission mismatches automatically.
General Troubleshooting Best Practices
Reviewing System Logs and Error Messages (Unleashed and Linnworks)
Logs are a goldmine. Before calling support, always review logs in both Unleashed and Linnworks—they often tell you the what, when, and why of a sync issue.
TIDE consolidates logs across systems into one dashboard, so you’re not toggling between screens.
Testing in a Staging Environment (if available)
Test before you launch. A sandbox environment helps you replicate bugs without harming your live data.
TIDE allows sandbox setups to test new workflows before pushing them into production.
Contacting Support (Unleashed, Linnworks, or Integration Partner)
If you’re stuck, reach out. Whether it’s Unleashed, Linnworks, or a third-party like TIDE, getting help early saves time later.
Isolating the Problem (Is it one product? One channel? One type of order?)
Narrow it down. If the issue only affects one product or sales channel, it’s easier to debug. Broad issues usually have different symptoms.
TIDE helps isolate problems with intelligent tagging and data segmentation.
Conclusion
A Proactive Approach to Integration Health
Integrations aren’t something you “set and forget.” They’re like your car—they need occasional checkups, oil changes, and sometimes, a mechanic. TIDE makes proactive maintenance easier by handling the “what ifs” before they become support tickets.
Maintaining a Smooth and Reliable Operation
Getting Unleashed and Linnworks to work harmoniously doesn’t have to be a chore. With regular health checks, clean data, and smart integration tools like TIDE, you can finally enjoy the promise of automation—without the headaches.
Read more about TIDE’s Unleashed & Linnworks integration here