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I will fix and debug n8n workflow, API and webhook errors
Vladislav Polo.
About this gig
Is your n8n workflow failing, returning errors, or not behaving as expected?
I will diagnose, debug, and fix your n8n automation, API, webhook, or Supabase integration and test the workflow after the repair.
I can help with:
Failed or broken n8n workflows
API and HTTP request errors
401 / 403 authentication issues
Webhook problems
JSON and data mapping errors
Broken expressions and workflow logic
Supabase and database integration issues
OpenAI API integration problems
Data not being passed or stored correctly
Self-hosted n8n workflow issues
Integration and execution debugging
My process:
1. Diagnose the failure and identify the root cause
2. Fix the workflow, integration, or data flow
3. Test the affected execution path
4. Verify that the expected workflow behavior is restored
I work with n8n, Supabase/PostgreSQL, REST APIs, webhooks, OpenAI API, JavaScript, JSON, and self-hosted n8n environments.
IMPORTANT:
Package scope depends on the number of workflows, integrations, and related issues. For complex systems or multiple workflows, please message me before ordering so I can review the scope.
Send me the error, workflow screenshot/export, execution details, or API documenta
Get to know Vladislav Polo.
Vladislav Polo.
AI Automation Engineer, n8n, Supabase, APIs, AI Agents
- FromKyrgyzstan
- Member sinceFeb 2020
- Avg. response time5 hours
Languages
English, Russian
Designing and building AI automation systems, business workflows, and system integrations using n8n, Supabase, OpenAI, REST APIs, webhooks, PostgreSQL, and Docker.
Projects include AI-powered sales automation, lead qualification, knowledge base systems, appointment booking, API integrations, database workflows, and multi-step business process automation.
My Portfolio
Other Software Development Services I Offer
FAQ
What n8n problems can you fix?
I can diagnose and fix failed workflows, API and webhook errors, authentication issues, JSON/data mapping problems, broken expressions, workflow logic, Supabase/database connections, OpenAI API integrations, and related execution issues.
What do you need to diagnose my workflow?
Please send the workflow export or screenshots, the error message or failed execution details, the expected behavior, and any relevant API documentation. Do not send passwords or secret API keys in the order requirements.
Can you fix API and webhook errors?
Yes. I can troubleshoot API requests, webhooks, authentication, request/response data, JSON mapping, HTTP errors, and the n8n logic around the integration.
Can you fix Supabase or OpenAI integrations in n8n?
Yes. I work with n8n, Supabase/PostgreSQL, OpenAI API, REST APIs, and webhooks. I can diagnose integration and data-flow problems within the agreed package scope.
Which package should I choose?
Quick Fix is for one specific issue. Workflow Repair is for several related problems or an API/webhook/database integration. Automation Rescue is for a more complex automation with multiple integrations or logic issues. Please message me first if the scope is unclear.
