n8n Error Trigger: Send Telegram Alerts on Workflow Failures

Get instant Telegram alerts when your n8n workflows fail

This n8n workflow uses an Error Trigger to automatically detect failures in other workflows and send a clear, HTML-formatted Telegram alert to your chat—so you can respond fast instead of checking logs.

What this workflow does

• Listens for workflow failures: It triggers when another n8n workflow is set to use this one as its Error workflow and that workflow fails.
• Reads your Telegram chat ID: It loads your configured Telegram chat ID from a workflow setting value.
• Builds a concise failure message: It formats an HTML alert that includes the `workflow name`, the failing step or trigger error, the error message, and an execution link when available.
• Sends the alert to Telegram: It sends the message via the Telegram node using your bot, with HTML parsing enabled and link previews disabled.

Use cases

• SaaS operations: Notify your team immediately if a critical automation workflow fails and blocks data sync.
• Automation engineers: Catch errors in upstream workflows (ETL, webhooks, scheduled jobs) and jump directly to the failed execution.
• Self-hosted n8n reliability: Keep oversight of workflow health without manually reviewing the n8n UI.

Technical details

• n8n nodes used: Error Trigger, Set, Code, Telegram, Sticky Note
• Telegram requirements: A Telegram bot token (from @BotFather) and your Telegram chat ID
• Compatibility: Works with n8n 1.x or 2.x (self-hosted or Cloud)
• Customization: Update the alert wording or add fields in the “Build alert” (code/message building) step.

Setup at a glance

• Create a Telegram bot via @BotFather and add its token as a Telegram credential in n8n.
• Find your Telegram chat ID and paste it into the workflow’s Telegram chat ID setting.
• In each monitored workflow, set this workflow as the Error workflow in n8n.