Manage calendar events with Slack using OpenAI-powered Outlook assistant
Needs changesNeeds changes. This template uses 1 thing(s) that n8n 3.0 removes: AI Agent v1 (old agent modes). 1 breaking item(s) found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 11 nodes and runs when an HTTP POST request hits its webhook URL. Along the way it connects OpenAI Chat Model, Microsoft Outlook and Slack.
How it runs
Trigger: When an HTTP POST request hits its webhook URL.
- Is Auth Challenge? (If): checks a condition and branches into true / false
- Respond to Challenge (Respond to Webhook): sends the response back to the webhook caller
- Get Message (Edit Fields (Set)): sets 5 fields: ts, message, is_bot…
- Outlook Calendar Assistant (AI Agent): runs an AI agent, with model: OpenAI Chat Model; 3 tools (Get Available Calendars, Create New Calendar Event, Search All Outlook Events); memory: Simple Memory
- Send Reply (Slack): uses Slack
Services it uses
Before you upgrade to n8n 3.0
1 thing in this workflow is removed in n8n 3.0. Fix it before you upgrade:
- AI Agent v1 (old agent modes) in Outlook Calendar Assistant (v1.7): replace with Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent.
| Removed in 3.0 | Replace with |
|---|---|
| AI Agent v1 (old agent modes) Outlook Calendar Assistant (v1.7) | Latest AI Agent node (Tools Agent). For SQL Agent, use a Postgres or MySQL tool with a recent AI Agent. |
Nodes used (9)
- OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Microsoft Outlook Tool
n8n-nodes-base.microsoftOutlookTool - Simple Memory
@n8n/n8n-nodes-langchain.memoryBufferWindow - AI Agent
@n8n/n8n-nodes-langchain.agent - Slack
n8n-nodes-base.slack - Respond to Webhook
n8n-nodes-base.respondToWebhook - If
n8n-nodes-base.if - Edit Fields (Set)
n8n-nodes-base.set - Webhook
n8n-nodes-base.webhook
From the author
This n8n template demonstrates how easy it is to build an Outlook Calendar Assistant powered by an AI agent equipped with Tools. For teams using Outlook Calendar and Slack who need easier calendar management, this workflow can be a great first step to…