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

# Unassign SmartServers from Campaign

> Remove SmartServer (dedicated IP) assignments from a campaign

<Note>
  **SmartServers API**: Dedicated IP infrastructure feature. Contact [support@smartlead.ai](mailto:support@smartlead.ai) for access.
</Note>

Without `server_id`, every SmartServer assigned to the campaign is removed and SmartServer auto-rotation is turned off for the campaign. With `server_id`, only that server is removed.

## Path Parameters

<ParamField path="campaign_id" type="string" required>
  Campaign ID
</ParamField>

## Query Parameters

<ParamField query="api_key" type="string" required>
  Your SmartLead API key
</ParamField>

<ParamField query="server_id" type="string">
  Remove only this SmartServer from the campaign
</ParamField>

<RequestExample>
  ```bash cURL theme={null}
  curl -X DELETE "https://smartservers.smartlead.ai/api/v1/smart-server/mapping/campaign/123?api_key=YOUR_KEY"
  ```

  ```python Python theme={null}
  import requests

  response = requests.delete(
      "https://smartservers.smartlead.ai/api/v1/smart-server/mapping/campaign/123",
      params={"api_key": "YOUR_API_KEY"}
  )
  print(response.json())
  ```
</RequestExample>

## Response Example

<ResponseExample>
  ```json 200 theme={null}
  {
    "statusCode": 200,
    "success": true,
    "message": "Smart server campaign mapping updated successfully"
  }
  ```

  ```json 404 - No assignment found theme={null}
  {
    "statusCode": 404,
    "success": false,
    "message": "Not Found",
    "error": "Smart server campaign mapping not found"
  }
  ```
</ResponseExample>