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

# Create a continuation for a lien

POST https://api.middesk.com/v1/liens/{lien_id}/continuations
Content-Type: application/json

Creates a lien continuation, extending the lien before it lapses. Returns the existing continuation if one is already in flight for the lien.

Reference: https://docs.middesk.com/api-reference/lien-continuations/create-lien-continuation

## Authentication

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

## Request

### Path parameters

- `lien_id` (string, required) — Lien ID

### Body (application/json)

This endpoint expects an object.

- `packet_number` (string, optional) — Packet number for the continuation filing (optional - auto-generated if not provided). Cannot contain underscores unless the lien being continued has an underscored packet number.

## Response

### 200

existing lien continuation returned

- `object` (string, optional) — Object type
- `id` (string, optional) — Lien continuation ID
- `lien_id` (string, optional) — Associated lien ID
- `status` (string, optional) — Continuation status
- `old_lapse_date` (date, optional, nullable) — Lapse date before the continuation
- `new_lapse_date` (date, optional, nullable) — Lapse date after the continuation is filed
- `file_number` (string, optional, nullable) — Filing file number
- `confirmation_number` (string, optional, nullable) — Filing confirmation number
- `packet_number` (string, optional, nullable) — Filing packet number
- `filing_date` (date, optional, nullable) — Date the continuation was filed
- `created_at` (string, optional) — Creation timestamp
- `updated_at` (string, optional) — Last update timestamp

## Errors

### 404 Create Lien Continuation Request Not Found Error

lien not found

- `errors` (list of ErrorResponseErrorsItem, required)

### 422 Create Lien Continuation Request Unprocessable Entity Error

packet number contains an underscore

- `errors` (list of ErrorResponseErrorsItem, required)

## Types

### ErrorResponseErrorsItem

- `message` (string, required)
- `parameter` (string, optional) — Request parameter associated with the error, when applicable

## Examples

**Request**

```json
{
  "packet_number": "CONT-12345"
}
```

**Response**

```json
{
  "object": "lien_continuation",
  "id": "id",
  "lien_id": "lien_id",
  "status": "status",
  "old_lapse_date": "2023-01-15",
  "new_lapse_date": "2023-01-15",
  "file_number": "file_number",
  "confirmation_number": "confirmation_number",
  "packet_number": "packet_number",
  "filing_date": "2023-01-15",
  "created_at": "created_at",
  "updated_at": "updated_at"
}
```

**SDK Code**

```python Create a lien continuation
import requests

url = "https://api.middesk.com/v1/liens/lien_id/continuations"

payload = { "packet_number": "CONT-12345" }
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.json())
```

```javascript Create a lien continuation
const url = 'https://api.middesk.com/v1/liens/lien_id/continuations';
const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: '{"packet_number":"CONT-12345"}'
};

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

```go Create a lien continuation
package main

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

func main() {

	url := "https://api.middesk.com/v1/liens/lien_id/continuations"

	payload := strings.NewReader("{\n  \"packet_number\": \"CONT-12345\"\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 Create a lien continuation
require 'uri'
require 'net/http'

url = URI("https://api.middesk.com/v1/liens/lien_id/continuations")

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  \"packet_number\": \"CONT-12345\"\n}"

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

```java Create a lien continuation
import com.mashape.unirest.http.HttpResponse;
import com.mashape.unirest.http.Unirest;

HttpResponse<String> response = Unirest.post("https://api.middesk.com/v1/liens/lien_id/continuations")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"packet_number\": \"CONT-12345\"\n}")
  .asString();
```

```php Create a lien continuation
<?php
require_once('vendor/autoload.php');

$client = new \GuzzleHttp\Client();

$response = $client->request('POST', 'https://api.middesk.com/v1/liens/lien_id/continuations', [
  'body' => '{
  "packet_number": "CONT-12345"
}',
  'headers' => [
    'Authorization' => 'Bearer <token>',
    'Content-Type' => 'application/json',
  ],
]);

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

```csharp Create a lien continuation
using RestSharp;

var client = new RestClient("https://api.middesk.com/v1/liens/lien_id/continuations");
var request = new RestRequest(Method.POST);
request.AddHeader("Authorization", "Bearer <token>");
request.AddHeader("Content-Type", "application/json");
request.AddParameter("application/json", "{\n  \"packet_number\": \"CONT-12345\"\n}", ParameterType.RequestBody);
IRestResponse response = client.Execute(request);
```

```swift Create a lien continuation
import Foundation

let headers = [
  "Authorization": "Bearer <token>",
  "Content-Type": "application/json"
]
let parameters = ["packet_number": "CONT-12345"] as [String : Any]

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

let request = NSMutableURLRequest(url: NSURL(string: "https://api.middesk.com/v1/liens/lien_id/continuations")! 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()
```