> For the complete documentation index, see [llms.txt](https://docs.planetcrust.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.planetcrust.com/human-connections/google/google-calendar-individual/action-update-event.md).

# Action: Update Event

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<figure><img src="/files/XTIXuRodkVx2AJQ6LF4T" alt="" width="188"><figcaption></figcaption></figure>

<p align="center">The Update Event action modifies the details of an existing event.</p>

{% embed url="<https://www.youtube.com/watch?v=CyuUuaBSZzA>" %}

#### Example User Story

I want to update an existing event in Google Calendar so that I can modify event details like title, description, or timing.

#### Fields

| Field Name  | Field Type | Required |
| ----------- | ---------- | -------- |
| calendarId  | String     | Yes      |
| eventId     | String     | Yes      |
| summary     | String     | No       |
| description | String     | No       |
| startTime   | String     | No       |
| endTime     | String     | No       |
| timeZone    | String     | No       |

### Related Connections

[Google Calendar](/human-connections/google/google-calendar-individual.md)

### Related Automations

Example link

### Code (Apache v2.0): Operation

```
{
  "handle": "update-event",
  "state": "inDev",
  "meta": {
    "short": "Update Event",
    "description": "Updates an existing event in Google Calendar."
  },
  "input": [
    {
      "name": "calendarId",
      "type": "String",
      "required": true,
      "meta": {
        "description": "Calendar identifier."
      }
    },
    {
      "name": "eventId",
      "type": "String",
      "required": true,
      "meta": {
        "description": "Event identifier."
      }
    },
    {
      "name": "summary",
      "type": "String",
      "required": false,
      "meta": {
        "description": "Event summary/title."
      }
    },
    {
      "name": "description",
      "type": "String",
      "required": false,
      "meta": {
        "description": "Event description."
      }
    },
    {
      "name": "startTime",
      "type": "String",
      "required": false,
      "meta": {
        "description": "Event start time (RFC3339 format)."
      }
    },
    {
      "name": "endTime",
      "type": "String",
      "required": false,
      "meta": {
        "description": "Event end time (RFC3339 format)."
      }
    },
    {
      "name": "timeZone",
      "type": "String",
      "required": false,
      "meta": {
        "description": "Time zone for the event (e.g., 'America/New_York')."
      }
    }
  ],
  "output": [
    {
      "name": "eventId",
      "type": "String",
      "selector": ["id"],
      "meta": {
        "description": "The updated event ID."
      }
    },
    {
      "name": "htmlLink",
      "type": "String",
      "selector": ["htmlLink"],
      "meta": {
        "description": "The absolute link to the updated event."
      }
    }
  ],
  "steps": [
    {
      "type": "http",
      "http": {
        "method": "PUT",
        "path": {
          "value": "/{{calendarId}}/events/{{eventId}}",
          "placeholders": [
            {
              "name": "calendarId",
              "type": "String",
              "description": "Calendar identifier.",
              "required": true
            },
            {
              "name": "eventId",
              "type": "String",
              "description": "Event identifier.",
              "required": true
            }
          ]
        },
        "headers": {
          "Content-Type": "application/json"
        },
        "bodyTemplate": {
          "value": "{\n  \"summary\": \"{{summary}}\",\n  \"description\": \"{{description}}\",\n  \"start\": {\n    \"dateTime\": \"{{startTime}}\",\n    \"timeZone\": \"{{timeZone}}\"\n  },\n  \"end\": {\n    \"dateTime\": \"{{endTime}}\",\n    \"timeZone\": \"{{timeZone}}\"\n  }\n}",
          "placeholders": [
            {
              "name": "summary",
              "type": "String",
              "description": "Event summary/title.",
              "required": false
            },
            {
              "name": "description",
              "type": "String",
              "description": "Event description.",
              "required": false
            },
            {
              "name": "startTime",
              "type": "String",
              "description": "Event start time (RFC3339 format).",
              "required": false
            },
            {
              "name": "endTime",
              "type": "String",
              "description": "Event end time (RFC3339 format).",
              "required": false
            },
            {
              "name": "timeZone",
              "type": "String",
              "description": "Time zone for the event (e.g., 'America/New_York').",
              "required": false
            }
          ]
        }
      }
    }
  ]
}

```

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