Generate Smart Calendly Notifications for Outlook and Slack using GPT-4

This n8n automation notifies you whenever someone books a meeting with you via Calendly . It sends a customized email via Outlook and a Slack message using details from the event.

📌 What This Workflow Does

1. Listens for new Calendly meeting bookings ( invitee.created ).
2. Extracts key details (name, email, reason for meeting, start time).
3. Uses an AI agent to generate both:
   • A HTML email sent to you via Outlook.
   • A Slack message sent to your chosen channel.

⚙️ Step-by-Step Setup Instructions

1. 🔗 Calendly API Setup

• In n8n: Go to Credentials → Add Credential → Calendly API .
• Connect your account with the personal access token.
• In the Calendly Trigger node, set event to invitee.created .

2. 📧 Microsoft Outlook Credential

• Add Microsoft Outlook credentials via OAuth2 in n8n → Credentials .
• Select it in the "Send a message" node.

3. 💬 Slack Setup

• Add Slack OAuth2 credentials.
• Select your Slack workspace and choose the channel (eg, #leads ).

4. 🧠 Configure the AI ​​Agent (OpenAI)

• Provide your OpenAI API key under Credentials → OpenAI API .
• The AI ​​Agent node is pre-configured to:
  • Format a custom Slack message
  • Format a custom Outlook HTML email

5. 🛠 Node Details

• Calendly Event (Trigger): Listens for new bookings
• Edit Fields : Extracts values ​​like name, email, start time, and form answers
• Email Generator (AI Agent): Creates formatted emails + Slack messages
• Send a message (Outlook): Sends the formatted email to your inbox
• Slack Message : Sends the AI-generated Slack alert

🧪 Example Output

Slack Message :