I will fix n8n workflow, webhook, API, and oauth errors

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D
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Dmitry G.

About this gig

Your n8n workflow is failing at a webhook, API request, credential, mapping, expression, or branch. I will diagnose the exact issue, fix the agreed problem, and test the affected path.


Common fixes:

webhook data not reaching the next node

HTTP Request or API errors

OAuth and credential configuration

invalid JSON, expressions, or field mapping

duplicate runs and missing filters

broken IF or Switch branches

AI output that cannot be parsed reliably

workflows that stop without useful error handling


Basic covers one isolated issue. Choose Standard when several connected nodes need repair. Premium is for a larger workflow rescue and hardening pass.


Before ordering, send the workflow export or screenshots, the exact error, expected behavior, and a redacted sample payload. Never send passwords or secret keys in chat.

Get to know Dmitry G.

Dmitry G.

AI Automation Specialist, n8n, Make, OpenAI, Workflow Automation

  • FromKazakhstan
  • Member sinceMay 2026
  • Avg. response time11 hours
  • Languages

    English, Russian
🤖 I build practical AI automations and workflows for small businesses using n8n, Make, Zapier, OpenAI, Google Sheets, Airtable, APIs, and webhooks. ✅ Lead capture & qualification ✅ Email triage & auto-replies ✅ CRM / Sheets updates ✅ Telegram & WhatsApp alerts ✅ Dashboards & internal tools Recent examples: AI lead qualification, payment automation, email triage, and a Shopify-style ops dashboard. Message me with your workflow idea.

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