> ## Documentation Index
> Fetch the complete documentation index at: https://help.gowindmill.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Calendar

> How Windmill detects 1:1 meetings from your Google or Outlook calendar, and how to create, link, or remove 1:1 series manually when auto-detection misses one.

Windmill requires a calendar to be connected to your account for 1:1s to work. You can connect either [Google Workspace](/integrations/google-workspace) or [Outlook Calendar](/integrations/outlook-calendar). Once connected, Windmill automatically syncs calendars and identifies which meetings are 1:1s. If Windmill misses a meeting, you can add it manually from the 1:1s page or the employee's profile.

## How Windmill identifies 1:1s

Windmill automatically identifies 1:1s based on:

* **Meeting name:** Meetings with titles like "1:1", "1-on-1", or "one on one"
* **Number of attendees:** Meetings with two participants

This automatic identification works for most cases. A recurring meeting with someone in another department can still be detected as a 1:1, even if neither person reports to the other in your HRIS. HRIS reporting structure affects manager-only features, not whether a two-person meeting can be identified as a 1:1.

You can manually control which meetings are treated as 1:1s in the 1:1s section of Windmill.

## Start ad hoc 1:1

Use "Start ad hoc 1:1" to immediately begin an ad-hoc 1:1 with someone—no calendar event required.

<Steps>
  <Step title="Navigate to the employee's profile">
    Open the profile of the person you want to meet with.
  </Step>

  <Step title="Click Actions">
    Click **Actions** in the top right.
  </Step>

  <Step title="Click Start ad hoc 1:1">
    Select **Start ad hoc 1:1** to begin.
  </Step>
</Steps>

This creates an ad-hoc 1:1 for right now and generates AI discussion topics.

## Add 1:1 from Calendar

Use "Add 1:1 from Calendar" to link a calendar event as a 1:1.

<Steps>
  <Step title="Go to the 1:1s tab or employee profile">
    Navigate to the [1:1s page](https://app.gowindmill.com/COMPANY/one-on-ones) or the person's profile.
  </Step>

  <Step title="Click Actions">
    Click **Actions** in the top right.
  </Step>

  <Step title="Click Add 1:1 from Calendar">
    Select **Add 1:1 from Calendar** and choose the meeting to add.
  </Step>
</Steps>

This adds the 1:1 label to the meeting in Windmill.

## Remove a 1:1

<Steps>
  <Step title="Navigate to the 1:1s tab">
    Go to the [1:1s page](https://app.gowindmill.com/COMPANY/one-on-ones).
  </Step>

  <Step title="Open the 1:1 pair">
    Click into the person with whom you have that 1:1.
  </Step>

  <Step title="Remove the meeting">
    Click the three dots next to the meeting and select **Remove meeting**.
  </Step>
</Steps>

This removes the 1:1 label from the meeting in Windmill.