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# Cancel scheduled SMS

> Cancel a scheduled text or a scheduled campaign before it sends. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/clicksend/cancel_scheduled_sms

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)

Cancel a scheduled text or a scheduled campaign before it sends.

ClickSend MCP tools: https://cotlet.dev/docs/mcp/clicksend.md

MCP tool: `clicksend_write → cancel_scheduled_sms`

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

Give message_id to cancel one text scheduled with send_sms, which History cancels with the red X, or campaign_id to cancel a whole scheduled campaign, which the Delete icon does. A campaign cannot lose single recipients, so the whole campaign goes. A cancelled text cannot be edited back; to move it, schedule a new one. By default you confirm each call; you can switch that off for this tool.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `message_id` | string | no | Message ID of a scheduled text from list_sms_history. |
| `campaign_id` | integer | no | Campaign ID from list_sms_campaigns. Give this or message_id. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "clicksend_write",
    "arguments": {
      "operation": "cancel_scheduled_sms",
      "arguments": {}
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "cancelled": "campaign",
    "campaign_id": 48213,
    "name": "Black Friday teaser",
    "recipients": 1840
  },
  "isError": false
}
```

Previous: [Create SMS campaign](https://cotlet.dev/docs/mcp/clicksend/create_sms_campaign.md)
Next: [Add contacts](https://cotlet.dev/docs/mcp/clicksend/add_contacts.md)

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