# Extend a subscription

Extend the lifetime of a subscription in the 2Checkout system on-demand. Use the **extendSubscription** method to set a new expiration deadline for a subscription.

## Request parameters

| Parameters                | Type / Description                                                                                                                                                                                                                                                                                             |
| ------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **sessionID**             | <p><strong>Required (string)</strong><br>Session identifier, the output of the <strong>Login</strong> method. Include <strong>sessionID</strong> into all your requests. 2Checkout throws an exception if the values are incorrect. The <strong>sessionID</strong> expires in <strong>10 minutes</strong>.</p> |
| **subscriptionReference** | <p><strong>Required (string)</strong><br>Unique, system-generated subscription identifier.</p>                                                                                                                                                                                                                 |
| **days**                  | <p><strong>Required (int)</strong><br>2Checkout prolongs the lifetime of a subscription using the number of days you send, adding the interval on top of the expiration date.<br><em>Hint:</em> Use a negative number to reduce the lifetime of a subscription.<br>Cannot be NULL.</p>                         |

## Response parameters

| Parameters  | Type/Description                                                               |
| ----------- | ------------------------------------------------------------------------------ |
| **Boolean** | **true** or **false** depending on whether the changes were successful or not. |

### Request sample

```php
<?php

require ('PATH_TO_AUTH');

$subscriptionReference = 'YOUR_SUBSCRIPTION_REFERENCE';
$days = 5;

try {
    $extendedSubscription = $client->extendSubscription($sessionID, $subscriptionReferenceTest, $days);
}
catch (SoapFault $e) {
    echo "extendedSubscription: " . $e->getMessage();
    exit;
}
var_dump("extendedSubscription", $extendedSubscription);
```


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