> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://partner.ninjatrader.com/eval/api/rest-api-endpoints/orders/start-order-strategy/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://partner.ninjatrader.com/_mcp/server.

# Start Order Strategy

POST https://live.tradovateapi.com/v1/orderStrategy/startorderstrategy
Content-Type: application/json

### Start a multi-bracket trading strategy.

This endpoint is used with a WebSocket. You can create any number of brackets and add them to `brackets` field on the `params` object as a JSON string.

```js

const URL = 'wss://demo.tradovateapi.com/v1/websocket'

const params = {
    entryVersion: {
        orderQty: 1,
        orderType: "Market"
    },
    brackets: [{
        qty: 1,
        profitTarget: -30,
        stopLoss: 15,
        trailingStop: false
    }]
}

const body = {
    accountId: myAcctId,
    accountSpec: name,
    symbol: 'MESM1',
    action: 'Sell',
    orderStrategyTypeId: 2, //2 is 'multibracket', we currently only offer this strategy but more may exist in the future.
    params: JSON.stringify(params)
}

const mySocket = new WebSocket(URL)

//authorize socket using your access token
mySocket.onopen = function() {
    mySocket.send(`authorize\n0\n\n${accessToken}`)
}

mySocket.send(`orderstrategy/startorderstrategy\n4\n\n${JSON.stringify(body)}`)

```

For more details about working with advanced order types, see [placeOrder](/#operation/placeOrder), [placeOCO](/#operation/placeOCO), and [placeOSO](/#operation/placeOSO).

Reference: https://partner.ninjatrader.com/eval/api/rest-api-endpoints/orders/start-order-strategy

## Authentication

- `Authorization` header (bearer token, required) — Bearer authentication of the form `Bearer <token>`, where token is your auth token.

## Request

### Body (application/json)

This endpoint expects a StartOrderStrategy.

- `symbol` (string, required)
- `orderStrategyTypeId` (long, required)
- `action` (enum, required) — Buy, Sell
  - Allowed values: `Buy`, `Sell`
- `accountId` (long, optional)
- `accountSpec` (string, optional)
- `params` (string, optional)
- `uuid` (string, optional)
- `customTag50` (string, optional)
- `isAutomated` (boolean, optional)

## Response

### 200

OrderStrategyStatusResponse

- `errorText` (string, optional) — Non-empty if the request failed
- `failureReason` (enum, optional) — AccountClosed, AdvancedTrailingStopUnsupported, AnotherCommandPending, BackMonthProhibited, ExecutionProviderNotConfigured, ExecutionProviderUnavailable, HomeStateRestricted, InvalidContract, InvalidPrice, KeyInformationDocumentRequired, LiquidationOnly, LiquidationOnlyBeforeExpiration, MaxOrderQtyIsNotSpecified, MaxOrderQtyLimitReached, MaxPosLimitMisconfigured, MaxPosLimitReached, MaxTotalPosLimitReached, MinTradeDurationNotElapsed, MultipleAccountPlanRequired, NoQuote, NotEnoughLiquidity, OtherExecutionRelated, ParentRejected, RiskCheckTimeout, SSFNFAComplianceRequired, SSFNFAComplianceRequiredJointOnly, SSFRiskDisclosureAcknowledgmentRequired, SessionClosed, Success, TooLate, TradingLocked, TrailingStopNonOrderQtyModify, Unauthorized, UnknownReason, Unsupported
  - Allowed values: `AccountClosed`, `AdvancedTrailingStopUnsupported`, `AnotherCommandPending`, `BackMonthProhibited`, `ExecutionProviderNotConfigured`, `ExecutionProviderUnavailable`, `HomeStateRestricted`, `InvalidContract`, `InvalidPrice`, `KeyInformationDocumentRequired`, `LiquidationOnly`, `LiquidationOnlyBeforeExpiration`, `MaxOrderQtyIsNotSpecified`, `MaxOrderQtyLimitReached`, `MaxPosLimitMisconfigured`, `MaxPosLimitReached`, `MaxTotalPosLimitReached`, `MinTradeDurationNotElapsed`, `MultipleAccountPlanRequired`, `NoQuote`, `NotEnoughLiquidity`, `OtherExecutionRelated`, `ParentRejected`, `RiskCheckTimeout`, `SSFNFAComplianceRequired`, `SSFNFAComplianceRequiredJointOnly`, `SSFRiskDisclosureAcknowledgmentRequired`, `SessionClosed`, `Success`, `TooLate`, `TradingLocked`, `TrailingStopNonOrderQtyModify`, `Unauthorized`, `UnknownReason`, `Unsupported`
- `orderStrategy` (OrderStrategy, optional)

## Types

### OrderStrategy

- `accountId` (long, required)
- `timestamp` (datetime, required)
- `contractId` (long, required)
- `orderStrategyTypeId` (long, required)
- `action` (enum, required) — Buy, Sell
  - Allowed values: `Buy`, `Sell`
- `status` (enum, required) — ActiveStrategy, ExecutionFailed, ExecutionFinished, ExecutionInterrupted, InactiveStrategy, NotEnoughLiquidity, StoppedByUser
  - Allowed values: `ActiveStrategy`, `ExecutionFailed`, `ExecutionFinished`, `ExecutionInterrupted`, `InactiveStrategy`, `NotEnoughLiquidity`, `StoppedByUser`
- `id` (long, optional)
- `initiatorId` (long, optional)
- `params` (string, optional)
- `uuid` (string, optional)
- `failureMessage` (string, optional)
- `senderId` (long, optional)
- `customTag50` (string, optional)
- `userSessionId` (long, optional)

## Examples

**Request**

```json
{
  "symbol": "string",
  "orderStrategyTypeId": 1,
  "action": "Buy"
}
```

**Response**

```json
{
  "errorText": "string",
  "failureReason": "AccountClosed",
  "orderStrategy": {
    "accountId": 1,
    "timestamp": "2024-01-15T09:30:00Z",
    "contractId": 1,
    "orderStrategyTypeId": 1,
    "action": "Buy",
    "status": "ActiveStrategy",
    "id": 1,
    "initiatorId": 1,
    "params": "string",
    "uuid": "string",
    "failureMessage": "string",
    "senderId": 1,
    "customTag50": "string",
    "userSessionId": 1
  }
}
```

**SDK Code**

```python
import requests

url = "https://live.tradovateapi.com/v1/orderStrategy/startorderstrategy"

payload = {
    "symbol": "string",
    "orderStrategyTypeId": 1,
    "action": "Buy"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.json())
```

```javascript
const url = 'https://live.tradovateapi.com/v1/orderStrategy/startorderstrategy';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"symbol":"string","orderStrategyTypeId":1,"action":"Buy"}'
};

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"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://live.tradovateapi.com/v1/orderStrategy/startorderstrategy"

	payload := strings.NewReader("{\n  \"symbol\": \"string\",\n  \"orderStrategyTypeId\": 1,\n  \"action\": \"Buy\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	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://live.tradovateapi.com/v1/orderStrategy/startorderstrategy")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"symbol\": \"string\",\n  \"orderStrategyTypeId\": 1,\n  \"action\": \"Buy\"\n}"

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://live.tradovateapi.com/v1/orderStrategy/startorderstrategy")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"symbol\": \"string\",\n  \"orderStrategyTypeId\": 1,\n  \"action\": \"Buy\"\n}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://live.tradovateapi.com/v1/orderStrategy/startorderstrategy', [
  'body' => '{
  "symbol": "string",
  "orderStrategyTypeId": 1,
  "action": "Buy"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://live.tradovateapi.com/v1/orderStrategy/startorderstrategy");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"symbol\": \"string\",\n  \"orderStrategyTypeId\": 1,\n  \"action\": \"Buy\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [
  "symbol": "string",
  "orderStrategyTypeId": 1,
  "action": "Buy"
] as [String : Any]

let postData = JSONSerialization.data(withJSONObject: parameters, options: [])

let request = NSMutableURLRequest(url: NSURL(string: "https://live.tradovateapi.com/v1/orderStrategy/startorderstrategy")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "POST"
request.allHTTPHeaderFields = headers
request.httpBody = postData as Data

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()
```