How to Send Meeting Notes Reminders from Google Calendar to Slack with N8n

Dashboard > New workflow

Create New Workflow

Start a fresh N8n workflow to build your meeting reminder automation. This workflow will watch for calendar events and trigger Slack reminders.

1. 1Click 'New workflow' from the N8n dashboard
2. 2Name your workflow 'Meeting Notes Reminder'
3. 3Click 'Save' to create the empty workflow

Workflow > Add Node > Google Calendar > Event Ended

Add Google Calendar Trigger

Configure N8n to monitor your Google Calendar for ending meetings. The trigger will fire when meetings conclude based on their end times.

1. 1Click the '+' button to add a new node
2. 2Search for 'Google Calendar' and select it
3. 3Choose 'Event Ended' as the trigger type
4. 4Set the polling interval to 1 minute

Google Calendar Node > Credential > Create New

Connect Google Calendar Account

Authenticate N8n with your Google account to access calendar data. This creates the OAuth connection needed to read meeting information.

1. 1Click 'Create New' next to Credential for Google Calendar API
2. 2Sign in with your Google account
3. 3Grant N8n permission to read your calendar
4. 4Click 'Save' to store the credential

Workflow > Add Node > If

Filter for Meetings with Attendees

Add a filter to only process meetings that have attendees, since solo calendar blocks don't need note reminders. This prevents unnecessary Slack messages.

1. 1Add an 'If' node after the Google Calendar trigger
2. 2Set condition to 'attendees' > 'is not empty'
3. 3Connect the 'true' path to continue the workflow
4. 4Leave the 'false' path unconnected

Workflow > Add Node > Wait

Add Wait Timer

Insert a 15-minute delay after the meeting ends before sending the reminder. This gives the organizer time to wrap up before getting prompted.

1. 1Add a 'Wait' node after the If condition
2. 2Set wait type to 'For Duration'
3. 3Enter '15' for amount and select 'minutes'
4. 4Click 'Execute Node' to test the configuration

Workflow > Add Node > Set

Extract Meeting Organizer

Pull the organizer's email from the calendar event to identify who should receive the Slack reminder. This email will be used to find their Slack user ID.

1. 1Add a 'Set' node after the Wait timer
2. 2Create a new field called 'organizerEmail'
3. 3Set the value to '{{ $node["Google Calendar"].json["organizer"]["email"] }}'
4. 4Add another field 'meetingTitle' with value '{{ $node["Google Calendar"].json["summary"] }}'

Workflow > Add Node > Slack > User > Get By Email

Find Slack User by Email

Look up the organizer's Slack user ID using their email address from the calendar event. Slack DMs require user IDs, not email addresses.

1. 1Add a 'Slack' node after the Set node
2. 2Choose 'User' resource and 'Get By Email' operation
3. 3Set email field to '{{ $node["Set"].json["organizerEmail"] }}'
4. 4Click 'Test step' to verify the user lookup works

Slack Node > Credential > Create New

Connect Slack Workspace

Authenticate N8n with your Slack workspace to enable sending direct messages. This OAuth connection allows the bot to message users on your behalf.

1. 1Click 'Create New' next to Slack API credentials
2. 2Choose 'OAuth2' authentication method
3. 3Follow the Slack authorization flow
4. 4Grant permissions for chat:write and users:read.email

Workflow > Add Node > Slack > Message > Post

Send Direct Message Reminder

Configure the actual Slack DM with the meeting notes reminder. This message will be sent directly to the meeting organizer's Slack account.

1. 1Add another 'Slack' node for sending the message
2. 2Choose 'Message' resource and 'Post' operation
3. 3Set channel to '{{ $node["Slack"].json["user"]["id"] }}'
4. 4Write your reminder text: 'Hi! Your meeting "{{ $node["Set"].json["meetingTitle"] }}" ended 15 minutes ago. Don\'t forget to share the meeting notes! 📝'

Workflow > Execute Workflow

Test Complete Workflow

Run the entire workflow with a real calendar event to verify all nodes execute properly. This end-to-end test catches any configuration issues.

1. 1Click 'Execute Workflow' button
2. 2Check each node shows green success status
3. 3Verify the Slack message was delivered to the correct user
4. 4Review the execution log for any errors or warnings

Workflow > Activate Toggle

Activate Workflow

Turn on the workflow to start monitoring your calendar automatically. Once active, it will check for ended meetings every minute and send reminders.

1. 1Click the 'Inactive' toggle in the top right
2. 2Confirm the workflow status changes to 'Active'
3. 3Set up error notifications to your email in workflow settings
4. 4Save the workflow one final time

Drop this into an n8n Code node.

// Skip reminders for recurring standup meetings
if (items[0].json.summary.toLowerCase().includes('standup') || 
    items[0].json.summary.toLowerCase().includes('daily')) {

// Skip reminders for recurring standup meetings
if (items[0].json.summary.toLowerCase().includes('standup') || 
    items[0].json.summary.toLowerCase().includes('daily')) {
  return [];
}
return items;