I will fix one n8n or make webhook data mapping error
Python Automation, API Integration and Software QA Engineer
About this Gig
I will diagnose and correct one clearly defined webhook, JSON, expression, or data-mapping problem in an existing n8n workflow.
The $5 Basic package includes:
- one existing workflow
- one reproducible error
- up to five relevant nodes
- a corrected workflow export when the fix is within scope
- test evidence using your supplied sample data
- a short explanation of the root cause and fix
Please send a sanitized workflow export, the exact error, a sample input, the expected output, and your n8n version. Remove all passwords, tokens, API keys, and private customer data before sending.
Suitable issues include incorrect JSON paths, field mapping, expressions, webhook response formats, or data passed between nodes.
Not included: new workflow builds, OAuth or account setup, hosting, production deployment, paid-service configuration, credential recovery, or third-party API redesign.
If the problem is caused by an external account, permission, or API limitation, I will document the confirmed cause and exact next action instead of guessing.
FAQ
What do I need to send?
Send a sanitized workflow export, the exact error, one sample input, the expected output, and your n8n version. Remove all credentials and private data first.
Do you need my passwords or API keys?
No. Remove every password, token, API key, and private customer record before sending. The Basic package uses a sanitized export and sample data only.
What counts as one error?
One reproducible webhook, JSON, expression, or data-mapping issue involving no more than five relevant nodes in one existing workflow.

