🧠 Analyze and Diagnose n8n Workflow Errors Automatically via OpenAI and Email

⚠️ This template is available on ☁️ Cloud & 🖥️ self-hosted n8n instances with the OpenAI node enabled.

👤 Who is this for?
This workflow is designed for n8n developers, automation engineers, and DevOps teams who want to automatically capture and analyze workflow errors, and receive professional HTML-styled diagnostics directly in their inbox.

💥 What problem does this solve?
Manually troubleshooting failed workflows in n8n can be time-consuming. This template streamlines error detection by:

– Capturing workflow failures using the Error Trigger node
– Diagnosing root causes with the help of OpenAI
– Sending a fully-formatted, human-readable HTML error report via email
– Including practical resolutions and next-step suggestions

This helps you or your team resolve issues faster and avoid repeated manual debugging.

⚙️ What this workflow does
⚡ Triggers on any n8n workflow error

📦 Extracts relevant error metadata including node, execution ID, and timestamps

🧠 Sends error content to OpenAI for analysis and recommendations

💌 Generates an HTML email report with inline styles and clear formatting

📥 Emails the result to a system administrator or support email

🛠️ Setup
– Install the OpenAI node in your self-hosted n8n instance.
– Add your OpenAI API Key securely in credentials.
– Configure the SMTP Email node with your email credentials.
– Adjust the Error Trigger to monitor specific workflows or all workflows.
– Set your preferred admin or dev email address in the final node.

🔧 How to customize this workflow to your needs
🧩 Use a Set node to define your variables, such as:
– Default admin email
– Workflow filter (optional)

✍️ Customize the prompt sent to OpenAI if you want deeper or more specific analysis.

🎨 Modify the email HTML styles to match your brand or internal format.

💾 Add additional logging (e.g., to Airtable, Google Sheets, or Notion) for long-term error tracking.

📌 Sticky NoteTitle: Automated Error Reporter with AI-Powered DiagnosisDescription: Captures any n8n error, sends it to OpenAI, and emails a beautiful HTML report to the administrator with steps to resolve the issue. Requires OpenAI credentials and SMTP configured.