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n8n - 💡(How to fix) Fix LinkedIn Node - Unable to create post

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Error Message

Getting error like: Error details from LinkedIn Error. code 426

Describe the problem/error/question

What is the error message (if any)?

  • error: all

Code Example

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.
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Everything was working fine, but suddenly some new change in the LinkedIn API

Getting error like: Your request is invalid or could not be processed by the service. Requested version 20250401 is not active. Error details from LinkedIn Error. code 426 Full message { "status": 426, "code": "NONEXISTENT_VERSION", "message": "Requested version 20250401 is not active" }

<!-- Please follow the template below. Skip the questions that are not relevant to you. -->

Describe the problem/error/question

What is the error message (if any)?

Please share your workflow/screenshots/recording

(Select the nodes on your canvas and use the keyboard shortcuts CMD+C/CTRL+C and CMD+V/CTRL+V to copy and paste the workflow.)
⚠️ WARNING ⚠️ If you have sensitive data in your workflow (like API keys), please remove it before sharing.

Share the output returned by the last node

<!-- If you need help with data transformations, please also share your expected output. -->

Debug info

core

  • n8nVersion: 2.16.2
  • platform: docker (self-hosted)
  • nodeJsVersion: 24.14.1
  • nodeEnv: production
  • database: postgres
  • executionMode: regular
  • concurrency: -1
  • license: enterprise (production)

storage

  • success: all
  • error: all
  • progress: false
  • manual: true
  • binaryMode: filesystem

pruning

  • enabled: true
  • maxAge: 336 hours
  • maxCount: 10000 executions

client

  • userAgent: mozilla/5.0 (macintosh; intel mac os x 10_15_7) applewebkit/537.36 (khtml, like gecko) chrome/147.0.0.0 safari/537.36
  • isTouchDevice: false

Generated at: 2026-04-20T19:46:40.998Z

extent analysis

TL;DR

Update the LinkedIn API version to an active version, as the currently requested version 20250401 is not active.

Guidance

  • Check the LinkedIn API documentation to find the latest active version and update the request accordingly.
  • Verify the error message for any additional information that might indicate the correct version to use.
  • Test the updated request with the new version to ensure it resolves the error.
  • If the issue persists, review the n8n workflow configuration to ensure it is correctly set up to handle API version changes.

Example

No code snippet is provided as the issue does not include specific code details.

Notes

The solution assumes that the LinkedIn API version can be updated in the n8n workflow configuration. If the version is hardcoded or managed externally, additional steps may be required to update it.

Recommendation

Apply workaround: Update the LinkedIn API version to an active version, as the error message indicates that the requested version is not active. This should resolve the error and allow the workflow to proceed.

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n8n - 💡(How to fix) Fix LinkedIn Node - Unable to create post