WeblineIndia This workflow corresponds to n8n.io template #14705 — we link there as the canonical source.
This workflow follows the Airtable → Slack recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"id": "OFpPRbCwK58gYKtz",
"meta": {
"templateCredsSetupCompleted": true
},
"name": "Facebook Event RSVP Tracking with Airtable Capacity Control & Slack Alerts",
"tags": [],
"nodes": [
{
"id": "507648e3-66b0-48dc-a401-8a14222d300b",
"name": "Edit Fields",
"type": "n8n-nodes-base.set",
"position": [
224,
0
],
"parameters": {
"options": {},
"assignments": {
"assignments": [
{
"id": "42dbca73-4680-421d-b7f7-bfdadb696a1c",
"name": "eventId",
"type": "string",
"value": "={{ $json.entry[0].changes[0].value.event_id }}"
},
{
"id": "8893bbf7-54d5-4f41-b92f-38ac5e1695a3",
"name": "userId",
"type": "string",
"value": "={{ $json.entry[0].changes[0].value.user_id }}"
},
{
"id": "c7182669-f543-420a-8106-08d60d73723b",
"name": "rsvpStatus",
"type": "string",
"value": "={{ $json.entry[0].changes[0].value.rsvp_status }}"
},
{
"id": "e27c6983-3f19-4900-a004-f93b06d40551",
"name": "receivedAt",
"type": "string",
"value": "={{new Date().toISOString()}}"
}
]
}
},
"typeVersion": 3.4
},
{
"id": "2230e4bf-51da-4da6-8962-d5368f5a39fe",
"name": "Facebook Event RSVP Webhook",
"type": "n8n-nodes-base.webhook",
"position": [
0,
0
],
"parameters": {
"path": "facebook-event-rsvp",
"options": {},
"httpMethod": "POST"
},
"typeVersion": 2.1
},
{
"id": "82e70b09-f0ac-424b-923f-2870d5d33fd2",
"name": "Upsert RSVP in Airtable",
"type": "n8n-nodes-base.airtable",
"position": [
544,
0
],
"parameters": {
"base": {
"__rl": true,
"mode": "list",
"value": "appipUxLpxPEKRXrJ",
"cachedResultUrl": "",
"cachedResultName": "Fake Review Detector"
},
"table": {
"__rl": true,
"mode": "list",
"value": "tblvi5s5CkzrBlFaw",
"cachedResultUrl": "",
"cachedResultName": "LogAtendeeData"
},
"columns": {
"value": {
"user_Id": "={{ $json.userId }}",
"event_Id": "={{ $json.eventId }}",
"receivedAt": "={{ $json.receivedAt }}",
"rsvpStatus": "={{ $json.rsvpStatus }}"
},
"schema": [
{
"id": "event_Id",
"type": "string",
"display": true,
"removed": false,
"readOnly": false,
"required": false,
"displayName": "event_Id",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "user_Id",
"type": "string",
"display": true,
"removed": false,
"readOnly": false,
"required": false,
"displayName": "user_Id",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "rsvpStatus",
"type": "string",
"display": true,
"removed": false,
"readOnly": false,
"required": false,
"displayName": "rsvpStatus",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "receivedAt",
"type": "string",
"display": true,
"removed": false,
"readOnly": false,
"required": false,
"displayName": "receivedAt",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"event_Id"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "upsert"
},
"credentials": {
"airtableTokenApi": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "bb718187-c039-4bce-b550-41829f5466a3",
"name": "Fetch Attending RSVPs for Event",
"type": "n8n-nodes-base.airtable",
"position": [
944,
0
],
"parameters": {
"base": {
"__rl": true,
"mode": "list",
"value": "appipUxLpxPEKRXrJ",
"cachedResultUrl": "",
"cachedResultName": "Fake Review Detector"
},
"table": {
"__rl": true,
"mode": "list",
"value": "tblvi5s5CkzrBlFaw",
"cachedResultUrl": "",
"cachedResultName": "LogAtendeeData"
},
"options": {},
"operation": "search",
"filterByFormula": "=AND(\n {event_Id} = '{{ $json.fields.event_Id }}',\n {rsvpStatus} = 'attending'\n)"
},
"credentials": {
"airtableTokenApi": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "ef306c7b-c5b3-4f8c-b444-e762984b22c9",
"name": "Is Event Capacity Exceeded?",
"type": "n8n-nodes-base.if",
"position": [
1152,
0
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "d4d753fe-bb3f-4216-b302-6b400ac3add1",
"operator": {
"type": "number",
"operation": "gt"
},
"leftValue": "={{$items().length}}",
"rightValue": 50
}
]
}
},
"typeVersion": 2.2
},
{
"id": "27b9d471-5aa6-4fa5-a6d0-45e0e380e33c",
"name": "Is Capacity Alert Already Sent?",
"type": "n8n-nodes-base.if",
"position": [
1504,
-16
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "or",
"conditions": [
{
"id": "e197a3cd-c197-4279-9dab-5d93e895ad64",
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
},
"leftValue": "={{ $json.capacity_alert_sent }}",
"rightValue": ""
},
{
"id": "b395e2c8-420d-4af7-907e-bb2030f47f2c",
"operator": {
"type": "boolean",
"operation": "empty",
"singleValue": true
},
"leftValue": "={{ $json.capacity_alert_sent }}",
"rightValue": ""
}
]
}
},
"typeVersion": 2.2
},
{
"id": "5bdf8440-96c3-4058-8ff0-2620cf138ca2",
"name": "Send Slack Capacity Alert",
"type": "n8n-nodes-base.slack",
"position": [
1920,
-16
],
"parameters": {
"text": "= Event Capacity Alert Event ID: {{ $json.event_Id }}Attendees: {{$items().length}} / 50",
"select": "channel",
"channelId": {
"__rl": true,
"mode": "list",
"value": "C09S57E2JQ2",
"cachedResultName": "n8n"
},
"otherOptions": {}
},
"credentials": {
"slackApi": {
"name": "<your credential>"
}
},
"typeVersion": 2.3
},
{
"id": "8a9f8f67-dbf3-4538-8628-46eedf22e06a",
"name": "Mark Capacity Alert as Sent",
"type": "n8n-nodes-base.airtable",
"position": [
2096,
-16
],
"parameters": {
"base": {
"__rl": true,
"mode": "list",
"value": "appipUxLpxPEKRXrJ",
"cachedResultUrl": "https://airtable.com/appipUxLpxPEKRXrJ",
"cachedResultName": "Fake Review Detector"
},
"table": {
"__rl": true,
"mode": "list",
"value": "tblvi5s5CkzrBlFaw",
"cachedResultUrl": "",
"cachedResultName": "LogAtendeeData"
},
"columns": {
"value": {
"id": "={{ $('Is Event Capacity Exceeded?').item.json.id }}",
"capacity_alert_sent": true
},
"schema": [
{
"id": "id",
"type": "string",
"display": true,
"removed": false,
"readOnly": true,
"required": false,
"displayName": "id",
"defaultMatch": true
},
{
"id": "event_Id",
"type": "string",
"display": true,
"removed": true,
"readOnly": false,
"required": false,
"displayName": "event_Id",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "user_Id",
"type": "string",
"display": true,
"removed": true,
"readOnly": false,
"required": false,
"displayName": "user_Id",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "rsvpStatus",
"type": "string",
"display": true,
"removed": true,
"readOnly": false,
"required": false,
"displayName": "rsvpStatus",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "receivedAt",
"type": "string",
"display": true,
"removed": true,
"readOnly": false,
"required": false,
"displayName": "receivedAt",
"defaultMatch": false,
"canBeUsedToMatch": true
},
{
"id": "capacity_alert_sent",
"type": "boolean",
"display": true,
"removed": false,
"readOnly": false,
"required": false,
"displayName": "capacity_alert_sent",
"defaultMatch": false,
"canBeUsedToMatch": true
}
],
"mappingMode": "defineBelow",
"matchingColumns": [
"id"
],
"attemptToConvertTypes": false,
"convertFieldsToString": false
},
"options": {},
"operation": "upsert"
},
"credentials": {
"airtableTokenApi": {
"name": "<your credential>"
}
},
"typeVersion": 2.1
},
{
"id": "3d63d981-0633-4059-8675-6645efa3a634",
"name": "Sticky Note",
"type": "n8n-nodes-base.stickyNote",
"position": [
-80,
-144
],
"parameters": {
"color": 7,
"width": 464,
"height": 336,
"content": "## Receive Event RSVP\nThis section captures new RSVP responses from a Facebook event and prepares the attendee data in a clean, usable format for further processing."
},
"typeVersion": 1
},
{
"id": "e40c6b40-d4a0-4f89-b6b9-b183fb34f4ff",
"name": "Sticky Note1",
"type": "n8n-nodes-base.stickyNote",
"position": [
464,
-144
],
"parameters": {
"color": 7,
"width": 320,
"height": 336,
"content": "## Save Attendee Details\nStores or updates attendee RSVP information in Airtable, ensuring no duplicate records are created and the latest RSVP status is always saved."
},
"typeVersion": 1
},
{
"id": "b8136d2b-39a7-44cc-9fd1-760a3764fd43",
"name": "Sticky Note2",
"type": "n8n-nodes-base.stickyNote",
"position": [
848,
-144
],
"parameters": {
"color": 7,
"width": 496,
"height": 336,
"content": "## Event Capacity Calculation\nCounts how many people are attending the event and checks whether the total number has reached or crossed the maximum allowed capacity."
},
"typeVersion": 1
},
{
"id": "f4fd2115-78df-46b9-bfe3-f810574ddd1b",
"name": "Sticky Note3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1408,
-144
],
"parameters": {
"color": 7,
"width": 352,
"height": 336,
"content": "## Alert Control & Deduplication\nChecks whether a capacity alert has already been sent for the event to prevent duplicate notifications when additional RSVPs arrive after capacity is reached."
},
"typeVersion": 1
},
{
"id": "b03b4aad-c476-4aae-babb-aa9193a561a5",
"name": "Sticky Note4",
"type": "n8n-nodes-base.stickyNote",
"position": [
1856,
-144
],
"parameters": {
"color": 7,
"width": 432,
"height": 336,
"content": "## Team Notification & State Update\nSends a real-time Slack alert to the team when event capacity is crossed and updates Airtable to mark the alert as sent for future executions."
},
"typeVersion": 1
},
{
"id": "dd2e1329-7ffc-4f06-ba4f-2f3012f44ebb",
"name": "Sticky Note5",
"type": "n8n-nodes-base.stickyNote",
"position": [
-560,
-832
],
"parameters": {
"width": 416,
"height": 848,
"content": "## How This Workflow Works\n**The workflow starts automatically whenever a new RSVP is received for a Facebook Event.**\n\n**The RSVP data is captured through a webhook and cleaned to keep only important details like event ID, user ID, RSVP status and time.**\n\n**Attendee information is saved in Airtable using upsert logic, which prevents duplicate records and keeps RSVP status up to date.**\n\n**The workflow then counts how many people are marked as attending for the event.**\n\n**This count is compared against the event\u2019s maximum capacity.**\n\n**If the capacity is reached or exceeded, the workflow checks whether the team has already been notified.**\n\n**If no alert was sent earlier, a Slack message is sent to inform the team that the event is full.**\n\n**Finally, Airtable is updated to record that the capacity alert has been sent, preventing duplicate notifications.**\n\n## Setup Steps\n\n**Create a webhook to receive Facebook RSVP events.**\n\n**Normalize the incoming data using a Set node.**\n\n**Store or update attendee records in Airtable.**\n\n**Count confirmed attendees and compare with event capacity.**\n\n**Send a Slack alert when capacity is reached and mark it as sent.**"
},
"typeVersion": 1
}
],
"active": false,
"settings": {
"executionOrder": "v1"
},
"versionId": "8d79b884-9ab8-433f-861e-1384a86e1604",
"connections": {
"Edit Fields": {
"main": [
[
{
"node": "Upsert RSVP in Airtable",
"type": "main",
"index": 0
}
]
]
},
"Upsert RSVP in Airtable": {
"main": [
[
{
"node": "Fetch Attending RSVPs for Event",
"type": "main",
"index": 0
}
]
]
},
"Send Slack Capacity Alert": {
"main": [
[
{
"node": "Mark Capacity Alert as Sent",
"type": "main",
"index": 0
}
]
]
},
"Facebook Event RSVP Webhook": {
"main": [
[
{
"node": "Edit Fields",
"type": "main",
"index": 0
}
]
]
},
"Is Event Capacity Exceeded?": {
"main": [
[
{
"node": "Is Capacity Alert Already Sent?",
"type": "main",
"index": 0
}
],
[]
]
},
"Fetch Attending RSVPs for Event": {
"main": [
[
{
"node": "Is Event Capacity Exceeded?",
"type": "main",
"index": 0
}
]
]
},
"Is Capacity Alert Already Sent?": {
"main": [
[],
[
{
"node": "Send Slack Capacity Alert",
"type": "main",
"index": 0
}
]
]
}
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
airtableTokenApislackApi
Pro
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About this workflow
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 eliminates manual RSVP tracking and prevents overbooking. Create a custom Facebook webhook endpoint in…
Source: https://n8n.io/workflows/14705/ — original creator credit. Request a take-down →
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