# Manage calendar events with Slack: n8n workflow template

> Started by another system calling it, and works across Slack. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather...

Source: https://millionrounds.com/workflow/manage-calendar-events-with-slack (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Scheduling](https://millionrounds.com/workflows?category=Scheduling#library)

# Manage calendar events with Slack

Started by another system calling it, and works across Slack. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 11 steps, 1 branch: a working afternoon to understand properly.

Medium Calls a model: OpenAI Retrieval

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmanage-calendar-events-with-slack)

**11 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 2 Model 3 Logic 2 Service 4

The steps in the order they run, from what starts it.

- 1 **OpenAI Chat Model** Lm Chat Open Ai *Model*
- 2 **Search All Outlook Events** Microsoft Outlook Tool *Service*
- 3 **Create New Calendar Event** Microsoft Outlook Tool *Service*
- 4 **Get Available Calendars** Microsoft Outlook Tool *Service*
- 5 **Simple Memory** Memory Buffer Window *Model*
- 6 **On BOT/APP Mention** Webhook *Starts it*
- 7 **Outlook Calendar Assistant** Agent *Model*
- 8 **Is Auth Challenge?** If *Logic*
- 9 **Send Reply** Slack *Service*
- 10 **Respond to Challenge** Respond To Webhook *Starts it*
- 11 **Get Message** Set *Logic*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 11, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Slack
- **Model:** OpenAI
- **Retrieval:** Answers are drawn from documents you supply, not from the model alone

## Questions

What does it need to run?

An n8n account, plus your own Slack account, and a key for OpenAI. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 11 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 11 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fmanage-calendar-events-with-slack)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Slack](https://millionrounds.com/workflows?service=Slack#library)

## Workflows like it

Also scheduling, with the same services where possible, closest in size first.

- [**Create Notion tasks from meeting transcripts with OpenAI** 11 steps · calls a model · Google Sheets, Notion](https://millionrounds.com/workflow/create-notion-tasks-from-meeting-transcripts-with-openai)
- [**Prepare daily AI meeting briefs from Google Calendar** 11 steps · calls a model · Gmail, Google Calendar](https://millionrounds.com/workflow/prepare-daily-ai-meeting-briefs-from-google-calendar)
- [**Schedule Instagram Content from Airtable with Claude** 11 steps · calls a model · Google Sheets, Pinecone](https://millionrounds.com/workflow/schedule-instagram-content-from-airtable-with-claude)
- [**Automate employee date tracking & reminders for HR with Gmail** 11 steps · Gmail, Google Calendar](https://millionrounds.com/workflow/automate-employee-date-tracking-and-reminders-for-hr-with-gm)
- [**Automated Notion task reminders with Slack** 11 steps · Notion, Slack](https://millionrounds.com/workflow/automated-notion-task-reminders-with-slack)
- [**Calculate litigation deadlines from intake forms** 11 steps · Gmail, Google Calendar](https://millionrounds.com/workflow/calculate-litigation-deadlines-from-intake-forms)