Track Facebook event RSVPs in Airtable and send Slack capacity alerts
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 8 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects Airtable and Slack.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Edit Fields (Edit Fields (Set)): sets 4 fields: eventId, userId, rsvpStatus…
- Upsert RSVP in Airtable (Airtable): create or update
- Fetch Attending RSVPs for Event (Airtable): search
- Is Event Capacity Exceeded? (If): checks a condition and branches into true / false
- Is Capacity Alert Already Sent? (If): checks a condition and branches into true / false
- Send Slack Capacity Alert (Slack): uses Slack
- Mark Capacity Alert as Sent (Airtable): create or update
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 (5)
- Edit Fields (Set)
n8n-nodes-base.set - Webhook
n8n-nodes-base.webhook - Airtable
n8n-nodes-base.airtable - If
n8n-nodes-base.if - Slack
n8n-nodes-base.slack
From the author
Facebook Event RSVP Webhook → Airtable Attendee Tracking → Slack Capacity Alerts This workflow automatically tracks Facebook Event RSVPs, stores attendee data in Airtable, checks event capacity and notifies your team on Slack when the event becomes full. It…