Detect holiday conflicts & suggest meeting reschedules with Google Calendar 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 11 nodes and runs on a schedule (every day at 09:00). Along the way it connects Google Calendar and Slack.
How it runs
Trigger: On a schedule (every day at 09:00).
- Workflow Configuration (Edit Fields (Set)): sets 6 fields: currentYear, nextWeekStart, nextWeekEnd…
- Loop Over Items (Loop Over Items (Split in Batches)): loops over the items in batches
- Get Next Week Calendar Events (Google Calendar): get many
- Merge and Filter Next Week Holidays (Code): runs custom JavaScript code
- Fetch Public Holidays (HTTP Request): calls an HTTP API
- Detect Holiday Conflicts (Code): runs custom JavaScript code
- Check If Conflicts Found (If): checks a condition and branches into true / false
- Generate Reschedule Suggestions (Code): runs custom JavaScript code
- Format Slack Digest (Code): runs custom JavaScript code
- Post Slack Digest (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 (8)
- Schedule Trigger
n8n-nodes-base.scheduleTrigger - Edit Fields (Set)
n8n-nodes-base.set - Code
n8n-nodes-base.code - Google Calendar
n8n-nodes-base.googleCalendar - If
n8n-nodes-base.if - Slack
n8n-nodes-base.slack - Loop Over Items (Split in Batches)
n8n-nodes-base.splitInBatches - HTTP Request
n8n-nodes-base.httpRequest
From the author
Who’s it for Remote and distributed teams that schedule across time zones and want to avoid meetings landing on public holidays—PMs, CS/AM teams, and ops leads who own cross-regional calendars. What it does / How it works The workflow checks next week’s…