Are you experiencing sudden disconnections between eBay and Linnworks caused by OAuth token errors? This is a common issue many sellers face in 2025 as eBay has upgraded its API security and authorization protocols. These changes, while improving account security, have introduced new challenges for integrations with third-party platforms like Linnworks.
This detailed guide from e-commerzz explains why these token errors occur, what changes were implemented in 2025, and the precise steps you can take to fix the problem and keep your eBay store syncing flawlessly with Linnworks.
📌 Understanding the eBay OAuth Token Issue in Linnworks
eBay relies on OAuth 2.0 for secure API access between seller accounts and third-party tools such as Linnworks. In 2025, eBay introduced enhanced security measures that shortened token lifespan and enforced stricter token rotation policies.
When Linnworks cannot refresh or validate the OAuth token correctly, you may see:
- Listings failing to sync to eBay
- Orders not importing into Linnworks
- Inventory updates stopping
- Error messages indicating token expiration or invalidation
These issues disrupt your workflow and can cause loss of sales or inventory mismatches.
🔄 What Changed in eBay OAuth Policies in 2025?
Key updates to eBay’s OAuth system include:
- Shortened Token Lifespan: Access tokens now expire every 24 hours, requiring timely refreshes.
- Strict Token Rotation Enforcement: Using old or expired tokens leads to automatic invalidation.
- Mandatory Two-Factor Authentication (2FA): Reauthorizing accounts often requires 2FA for added security.
- Enhanced Permissions Scopes: Apps must request and receive proper API permission scopes or risk being denied access.
These changes heighten account security but require sellers and developers to update their integration processes accordingly.
🛠️ How to Fix eBay OAuth Token Errors in Linnworks
Follow these steps to restore the connection and resolve token errors:
1. Access Your Linnworks Settings
Go to the admin panel and open the “Channel Integration” section.
2. Remove the Current eBay Integration
Delete the problematic eBay channel to clear the invalid token.
3. Reauthorize eBay Connection
Add a new eBay channel and carefully follow the login prompts. Make sure your eBay account has two-factor authentication enabled.
4. Approve All Required Permissions
Accept every permission scope requested during the OAuth authorization process. Missing scopes can cause incomplete functionality.
5. Test the Connection
Use the “Test” feature in Linnworks to verify your eBay account is successfully reconnected.
6. Monitor Integration Logs
Regularly check the error logs in Linnworks to ensure synchronization remains stable.
🧠 Pro Tips to Avoid Future OAuth Issues
To maintain a smooth integration, consider these best practices:
- Use a dedicated eBay user account solely for integrations.
- Refresh your OAuth token before it expires, ideally every 21–23 hours.
- Enable developer notifications to receive alerts on token status.
- Double-check API permission scopes before reconnecting apps.
- Perform weekly sync checks to catch issues early.
💼 Why Choose e-commerzz for Your eBay & Linnworks Support?
With over five years of experience handling more than 100 projects worldwide, e-commerzz is your trusted partner for multi-channel marketplace success. We specialize in helping sellers across Amazon, Walmart, eBay, Shopify, WooCommerce, and many other platforms, supporting clients in the US, UK, Canada, Australia, UAE, and beyond.
Here’s why clients prefer e-commerzz:
- Extensive experience managing large-scale projects and PPC campaigns.
- Proven expertise with $10M+ in ad spend handled.
- Dedicated to clear and responsive communication.
- Committed to quality, honesty, and delivering measurable results.
- Hardworking team focused on scaling your business.
🔚 Final Thoughts
OAuth token errors between eBay and Linnworks are frustrating but manageable with the right approach. By following this updated 2025 guide, you can restore your integration quickly and maintain seamless syncing for your eCommerce operations.
For expert help with eBay integrations or multi-marketplace support, e-commerzz offers tailored solutions that let you focus on growing your business while we handle the technical complexities.
🎯 Ready to Optimize Your Marketplace Integrations?
Partner with e-commerzz and experience hassle-free management of your eBay and Linnworks channels. Our expert team is ready to support your growth with reliable, efficient solutions.