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> For a complete documentation index, see https://docs.heyreach.io/llms.txt.
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# StartCampaign

POST https://api//api/public/campaign/StartCampaign?campaignId=<long>

## Activates a campaign that was created via **Create**.

Call this after **Create** (and after any **UpdateSequence** / **UpdateSchedule** / **UpdateAccounts** configuration) to start running the campaign. The campaign must have a valid sequence and at least one connected LinkedIn sender account.

### Query Parameters

- **campaignId** _(long, required)_: The ID of the campaign to activate.

### Errors

- **400**: Campaign is in an invalid status, the schedule is invalid, or the lead list / accounts are not usable.
    
- **404**: Campaign does not exist.

Reference: https://docs.heyreach.io/hey-reach-api/campaigns/start-campaign

## Request

### Query parameters

- `campaignId` (string, optional) — (Required) The id of the campaign to activate.

### Headers

- `X-API-KEY` (string, optional) — API key header using this scheme. Example: "X-API-KEY: \{API\_KEY}"

## Examples

**SDK Code**

```python
import requests

url = "https://api//api/public/campaign/StartCampaign"

querystring = {"campaignId":"<long>"}

headers = {"X-API-KEY": "{{HR_API_KEY}}"}

response = requests.post(url, headers=headers, params=querystring)

print(response.json())
```

```javascript
const url = 'https://api//api/public/campaign/StartCampaign?campaignId=%3Clong%3E';
const options = {method: 'POST', headers: {'X-API-KEY': '{{HR_API_KEY}}'}};

try {
  const response = await fetch(url, options);
  const data = await response.json();
  console.log(data);
} catch (error) {
  console.error(error);
}
```

```go
package main

import (
	"fmt"
	"net/http"
	"io"
)

func main() {

	url := "https://api//api/public/campaign/StartCampaign?campaignId=%3Clong%3E"

	req, _ := http.NewRequest("POST", url, nil)

	req.Header.Add("X-API-KEY", "{{HR_API_KEY}}")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(res)
	fmt.Println(string(body))

}
```

```ruby
require 'uri'
require 'net/http'

url = URI("https://api//api/public/campaign/StartCampaign?campaignId=%3Clong%3E")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["X-API-KEY"] = '{{HR_API_KEY}}'

response = http.request(request)
puts response.read_body
```

```java
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api//api/public/campaign/StartCampaign?campaignId=%3Clong%3E")
  .header("X-API-KEY", "{{HR_API_KEY}}")
  .asString();
```

```php
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api//api/public/campaign/StartCampaign?campaignId=%3Clong%3E', [
  'headers' => [
    'X-API-KEY' => '{{HR_API_KEY}}',
  ],
]);

echo $response->getBody();
```

```csharp
using RestSharp;

var client = new RestClient("https://api//api/public/campaign/StartCampaign?campaignId=%3Clong%3E");
var request = new RestRequest(Method.POST);
request.AddHeader("X-API-KEY", "{{HR_API_KEY}}");
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = ["X-API-KEY": "{{HR_API_KEY}}"]

let request = NSMutableURLRequest(url: NSURL(string: "https://api//api/public/campaign/StartCampaign?campaignId=%3Clong%3E")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers

let session = URLSession.shared
let dataTask = session.dataTask(with: request as URLRequest, completionHandler: { (data, response, error) -> Void in
  if (error != nil) {
    print(error as Any)
  } else {
    let httpResponse = response as? HTTPURLResponse
    print(httpResponse)
  }
})

dataTask.resume()
```