n8n - 💡(How to fix) Fix Workflow working twice [4 comments, 4 participants]

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n8n-io/n8n#28524Fetched 2026-04-16 07:05:16
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Error Message

✗ HTTP Error: [object Object]

  • 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.
RAW_BUFFERClick to expand / collapse
<!-- Please follow the template below. Skip the questions that are not relevant to you. -->

i am using webhook in my worfklow , in test enviroment the flow working fine and flow excuted onlt one time but when activate the workflow the flow excuted twice so the result give me twice

✗ HTTP Error: [object Object]

<img width="1589" height="631" alt="Image" src="https://github.com/user-attachments/assets/41062b9b-a2f2-49f2-8ce6-a99f37d98eca" />
(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: 2.15.1
  • platform: docker (self-hosted)
  • nodeJsVersion: 24.13.1
  • nodeEnv: production
  • database: sqlite
  • 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 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/147.0.0.0 safari/537.36
  • isTouchDevice: false

security

  • secureCookie: false

Generated at: 2026-04-15T10:36:44.114Z

Please note the two screenshot of the email that recieved attached in comment

extent analysis

TL;DR

The workflow is executing twice in production, resulting in duplicate results, and a potential fix involves investigating the webhook configuration to prevent duplicate executions.

Guidance

  • Review the webhook configuration to ensure it is not set up to trigger the workflow multiple times.
  • Check the workflow settings to see if there are any concurrency or retry settings that could be causing the duplicate executions.
  • Investigate the production environment to determine if there are any differences in the setup or configuration compared to the test environment that could be contributing to the issue.
  • Verify that the workflow is properly handling any potential errors or retries to prevent duplicate executions.

Example

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

Notes

The issue may be related to the differences in environment setup or configuration between test and production. Further investigation is needed to determine the root cause.

Recommendation

Apply a workaround to prevent duplicate executions, such as adding a check at the beginning of the workflow to see if it has already been executed and skip the execution if it has.

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