n8n workflow template

n8n critical event alerts template for Slack and email

This n8n critical event alerts template gives every tool you run one endpoint to call. Critical alerts go to Slack and email, warnings go to Slack, information is recorded, repeats are silenced, and if one channel is down the other still delivers.

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From $59.99
One-time purchase. No retainer. Setup guide included.
  • The workflow file: n8n workflow (JSON)
  • A step-by-step setup guide (PDF) with a verified cost breakdown
  • Failure handling: error log with the raw data, a separate Slack failure alert, and a clean response
  • No credentials included. You connect your own accounts

Make version: coming soon

What this workflow does

  1. Accepts an alert from any tool that can call a webhook and rejects unauthorised or malformed calls
  2. Silences repeats of the same alert inside your window, but still lets through one that gets more severe
  3. Sends critical alerts to Slack and email, warnings to Slack (or email if Slack is not set up), and only records information
  4. If one channel fails the other still delivers and the gap is noted; if every channel fails your caller gets an error so it can retry
  5. Saves every alert with the channels that actually delivered it

If something fails

  • Slack and email sends retry three times automatically
  • If one channel fails the other still delivers and the alert row records which channels worked
  • If every channel fails the raw alert is saved to an Errors sheet and a clean error is returned

Apps and accounts you need

  • n8n
  • Google Sheets
  • An email account (SMTP)
  • Slack

What it costs to run

ItemCost
n8n (self-hosted)Free software plus roughly $5 to $7 per month for a small server.
n8n Cloud StarterRoughly $20 to $24 per month for 2,500 executions.
Email sendingUse your own email provider. Resend, for example, is free up to 3,000 emails per month (100 per day).
Google Sheets and Slack$0 on free plans.

One alert is one n8n execution. Silenced repeats still count as executions, so keep the window switched on. Silencing uses n8n workflow memory, which works only on the active workflow, not in manual test runs.

Who it is for

Useful for teams that want uptime monitors, apps and other workflows to raise one reliable alert path instead of a pile of separate notifications. A Make version is coming soon.

Why a Conviq template

Each template is built to a production standard: failure handling is real, every cost is listed before you buy, and nothing ships with credentials. Browse all n8n workflow templates, learn about our n8n automation services, or have us tailor one as a custom automation project.

Frequently asked questions

Can I use only Slack or only email?
Yes. Leave the one you do not use unset in the Config node and the workflow uses the other.
How does it avoid alert storms?
Repeats of the same alert inside your window are silenced, and an alert that becomes more severe is still sent.
Is there a Make version?
A Make version is coming soon. The n8n version is available now.

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