Audit missing error workflows using the n8n API and Slack
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This workflow has 7 nodes and runs on a schedule (every week at 09:00). Along the way it connects Slack.
How it runs
Trigger: On a schedule (every week at 09:00).
- Settings (Edit Fields (Set)): sets 2 fields: ignoreTag, alertWhenClean
- Get published workflows (n8n): work with workflow
- Find workflows with no error workflow (Code): runs custom JavaScript code
- Anything worth saying? (If): checks a condition and branches into true / false
- Post the gaps to Slack (Slack): uses Slack
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (7)
- Schedule Trigger
n8n-nodes-base.scheduleTrigger - Edit Fields (Set)
n8n-nodes-base.set - n8n
n8n-nodes-base.n8n - Code
n8n-nodes-base.code - If
n8n-nodes-base.if - Slack
n8n-nodes-base.slack - No Operation, do nothing
n8n-nodes-base.noOp
From the author
Quick overview This workflow runs every Monday morning, uses the n8n public API to audit all active (published) workflows for missing error workflow settings, and posts a gap report to a Slack channel only when uncovered workflows are found (or optionally…