Send severity-based error alerts using Telegram, email and Google Sheets

Description

Who this template is for

This template is designed for n8n users running workflows in production
who need reliable and structured error monitoring, not just basic alerts.

It’s especially useful for:
Automation engineers and developers
Teams running business-critical workflows
Anyone who wants smarter alerting with reduced noise

What this workflow does

This workflow acts as a global, severity-based error monitoring system for n8n.

When a linked workflow fails, it automatically:
Classifies the error by severity (Critical, High, Normal)
Routes alerts based on severity level
Sends notifications via Telegram and Email
Logs critical errors for auditing and troubleshooting

This ensures important issues are escalated properly,
while avoiding unnecessary alert fatigue.

How it works

An Error Trigger captures execution failures from linked workflows.
A Code node analyzes the error and assigns a severity level.
Alerts are routed based on severity:
🔴 Critical → Email + Telegram + Logging
🟠 High → Telegram alert
🟡 Normal → Telegram alert
All alerts include rich context such as workflow name, failed node,
execution time, and execution URL.

The workflow only runs when an error occurs.

How to set up

Configure the required credentials (Telegram, Email, optional Google Sheets).
Replace placeholder values such as:
YOUR_TELEGRAM_CHAT_ID
YOUR_ALERT_EMAIL
Activate this workflow.
Open any workflow you want to monitor.
In Workflow Settings, set Error Workflow to this workflow.
Save and test by triggering an error.

Requirements

An active n8n instance (cloud or self-hosted)
Telegram Bot credentials
Email credentials (for critical alerts)
Optional: Google Sheets credentials for logging

How to customize the workflow

You can extend this workflow by:
Adding more alert channels (Slack, Discord, etc.)
Adjusting severity classification logic
Implementing rate-limiting or noise reduction
Logging errors to databases or external monitoring tools

Detailed instructions and explanations are included
inside the workflow using sticky notes.