> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://developer.projectmanager.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://developer.projectmanager.com/_mcp/server.

# Update Recurring Tasks

PUT https://api.projectmanager.com/api/data/tasks/{taskId}/recurring/settings
Content-Type: application/json

Updates the settings for a Recurring Task and re-generates occurrences of the Recurring Task from the new rules.
            
When making changes to a Recurring Task, you may want to investigate the consequences of your changes first
before finalizing the changes.  You can use the Validate Recurring Tasks API to examine these changes.  When
you are happy with the changes, call Update Recurring Tasks to complete them.
            
A Recurring Task is one that must be completed on a specific regular frequency, such as Daily, Weekly, Monthly,
or Yearly.  To create a Recurring Task, you must first create a regular Task with the necessary information,
then call one of the Create Recurring Task APIs.  To remove an instance of a Recurring Task, call Delete
Recurring Task and specify one or more instances of the Recurring Task.

Reference: https://developer.projectmanager.com/api-reference/task-recurrency/update-recurring-tasks

## Authentication

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

## Request

### Path parameters

- `taskId` (string, required) — The unique identifier of the Task

### Headers

- `x-integration-name` (string, optional) — The name of the calling system passed along as a header parameter

### Body (application/json)

This endpoint expects a RecurringTaskSettingsDto.

- `type` (integer, optional) — Type
- `repeatEvery` (integer, optional, nullable) — RepeatEvery
- `repeatOn` (list of integer, optional) — RepeatOn
- `repeatOn2Level` (integer, optional, nullable) — RepeatOn2Level
- `endsOn` (string, optional, nullable) — EndsOn
- `endsAfter` (integer, optional, nullable) — EndsAfter

## Response

### 200

Success

- `error` (AstroError, optional, nullable) — If the API call failed, this will contain information about the error that occurred.
- `success` (boolean, optional) — True if the API call succeeded; false otherwise.
- `hasError` (boolean, optional) — True if the API call failed.
- `statusCode` (enum, optional) — The HTTP code of the response.
  - Allowed values: `Continue`, `SwitchingProtocols`, `Processing`, `EarlyHints`, `OK`, `Created`, `Accepted`, `NonAuthoritativeInformation`, `NoContent`, `ResetContent`, `PartialContent`, `MultiStatus`, `AlreadyReported`, `IMUsed`, `MultipleChoices`, `MovedPermanently`, `Found`, `SeeOther`, `NotModified`, `UseProxy`, `Unused`, `TemporaryRedirect`, `PermanentRedirect`, `BadRequest`, `Unauthorized`, `PaymentRequired`, `Forbidden`, `NotFound`, `MethodNotAllowed`, `NotAcceptable`, `ProxyAuthenticationRequired`, `RequestTimeout`, `Conflict`, `Gone`, `LengthRequired`, `PreconditionFailed`, `RequestEntityTooLarge`, `RequestUriTooLong`, `UnsupportedMediaType`, `RequestedRangeNotSatisfiable`, `ExpectationFailed`, `MisdirectedRequest`, `UnprocessableEntity`, `Locked`, `FailedDependency`, `UpgradeRequired`, `PreconditionRequired`, `TooManyRequests`, `RequestHeaderFieldsTooLarge`, `UnavailableForLegalReasons`, `InternalServerError`, `NotImplemented`, `BadGateway`, `ServiceUnavailable`, `GatewayTimeout`, `HttpVersionNotSupported`, `VariantAlsoNegotiates`, `InsufficientStorage`, `LoopDetected`, `NotExtended`, `NetworkAuthenticationRequired`
- `data` (RecurringTaskChangeSetDetails, optional) — RecurringTaskChangeSetDetails

## Types

### AstroError

Information about an error that occurred within the ProjectManager API.

- `technicalError` (string, optional, nullable) — A technical description of the error that occurred. Not suitable for display to end users.
- `additionalErrors` (list of string, optional, nullable) — If additional errors beyond the main error in `Message` occurred, they will be listed here as individual messages.
- `validationErrors` (map from string to list of string, optional, nullable) — This contains a dictionary of validation errors. The key is the name of the field
- `message` (string, optional, nullable) — A description of the error that occurred. If your application has a user interface, show this message to explain what went wrong.

### RecurringTaskChangeSetDetails

RecurringTaskChangeSetDetails

- `taskIds` (list of string, optional) — The created Task Ids
- `changeSetId` (string, optional, nullable) — The ChangeSet Id
- `recurrences` (list of RecurrenceDto, optional) — The recurrence instances created by this action

### RecurrenceDto

A single recurrence instance created by a recurring Task, NPT, or Meeting action

- `id` (string, optional) — The unique identifier of the created recurrence instance
- `startDate` (string, optional) — The occurrence start (UTC). For Meetings this carries the meeting time.
- `endDate` (string, optional) — The occurrence finish (UTC)

## Examples

**Request**

```json
{}
```

**Response**

```json
{
  "error": {
    "technicalError": "string",
    "additionalErrors": [
      "string"
    ],
    "validationErrors": {},
    "message": "string"
  },
  "success": true,
  "hasError": true,
  "statusCode": "Continue",
  "data": {
    "taskIds": [
      "string"
    ],
    "changeSetId": "string",
    "recurrences": [
      {
        "id": "string",
        "startDate": "2024-01-15T09:30:00Z",
        "endDate": "2024-01-15T09:30:00Z"
      }
    ]
  }
}
```

**SDK Code**

```python
import requests

url = "https://api.projectmanager.com/api/data/tasks/taskId/recurring/settings"

payload = {}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript
const url = 'https://api.projectmanager.com/api/data/tasks/taskId/recurring/settings';
const options = {
  method: 'PUT',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{}'
};

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://api.projectmanager.com/api/data/tasks/taskId/recurring/settings"

	payload := strings.NewReader("{}")

	req, _ := http.NewRequest("PUT", 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://api.projectmanager.com/api/data/tasks/taskId/recurring/settings")

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

request = Net::HTTP::Put.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{}"

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.put("https://api.projectmanager.com/api/data/tasks/taskId/recurring/settings")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{}")
  .asString();
```

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

$client = new \GuzzleHttp\Client();

$response = $client->request('PUT', 'https://api.projectmanager.com/api/data/tasks/taskId/recurring/settings', [
  'body' => '{}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp
using RestSharp;

var client = new RestClient("https://api.projectmanager.com/api/data/tasks/taskId/recurring/settings");
var request = new RestRequest(Method.PUT);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = [] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.projectmanager.com/api/data/tasks/taskId/recurring/settings")! as URL,
                                        cachePolicy: .useProtocolCachePolicy,
                                    timeoutInterval: 10.0)
request.httpMethod = "PUT"
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()
```