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# Update an appointment

> Change an appointment: status, window, technicians or release it. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/servicetrade/update_appointment

Docs sections: [Get started](https://cotlet.dev/docs.md) · [REST API](https://cotlet.dev/docs/api.md) · [MCP](https://cotlet.dev/docs/mcp.md) · [SDKs & CLI](https://cotlet.dev/docs/sdks.md) · [Integrations](https://cotlet.dev/docs/integrations.md)

Change an appointment: status, window, technicians or release it.

ServiceTrade MCP tools: https://cotlet.dev/docs/mcp/servicetrade.md

MCP tool: `servicetrade_write → update_appointment`

Access: write. Confirm: waits for the user's OK before it runs.

Send only the fields to change; the rest stay as they are. Technicians and services are replaced as a whole, not added to. Releasing or cancelling reaches technicians and can reach the customer. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `appointment_id` | integer | yes | Appointment id from list_appointments. |
| `status` | string | no | One of scheduled, canceled_by_vendor, canceled_by_customer, completed, no_show. |
| `window_start` | string | no | ISO 8601 date-time with offset. |
| `window_end` | string | no | ISO 8601 date-time with offset. |
| `technician_ids` | array | no | Replaces the whole technician list of the appointment. |
| `released` | boolean | no | true gives the appointment to its technicians. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "servicetrade_write",
    "arguments": {
      "operation": "update_appointment",
      "arguments": {
        "appointment_id": 90417,
        "released": true
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "appointment_id": 90417,
    "status": "scheduled",
    "window_start": "2026-10-26T08:00:00-04:00",
    "window_end": "2026-10-26T10:00:00-04:00",
    "technicians": [
      {
        "id": 3301,
        "name": "Marcus Hill"
      }
    ],
    "released": true
  },
  "isError": false
}
```

Previous: [Create an appointment](https://cotlet.dev/docs/mcp/servicetrade/create_appointment.md)
Next: [Create a quote](https://cotlet.dev/docs/mcp/servicetrade/create_quote.md)

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