> For the complete documentation index, see [llms.txt](https://docs.2checkout.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.2checkout.com/channel-manager-api/channel-manager-api/api-2.1/json-rpc-2.1/reference/subscriptions/update-end-user-information.md).

# Update end-user information

Use this method to add end-user information to a subscription.

## Parameters

<table><thead><tr><th width="261.4000244140625">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><code>sessionID</code></td><td><strong>Required (string)</strong><br>Session identifier, output of the Login method. An exception is thrown for incorrect values.</td></tr><tr><td><code>subscriptionReferencesList</code></td><td><strong>Required (stringArray)</strong></td></tr><tr><td><code>EndUser</code></td><td><strong>Object</strong><br>Details below</td></tr><tr><td><code>EndUser.FirstName</code></td><td><strong>String</strong><br>End user first name</td></tr><tr><td><code>EndUser.LastName</code></td><td><strong>String</strong><br>End user last name</td></tr><tr><td><code>EndUser.Company</code></td><td><strong>String</strong><br>End user company name. Can be NULL.</td></tr><tr><td><code>EndUser.CountryCode</code></td><td><strong>String</strong><br>End user country code (ISO 3166 two-letter code).</td></tr><tr><td><code>EndUser.State</code></td><td><strong>String</strong><br>End user state. Example: "Alabama". Can be NULL.</td></tr><tr><td><code>EndUser.Email</code></td><td><strong>String</strong><br>End user email.</td></tr><tr><td><code>EndUser.Fax</code></td><td><strong>String</strong><br>End user fax number. Can be NULL.</td></tr><tr><td><code>EndUser.City</code></td><td><strong>String</strong><br>End user city.</td></tr><tr><td><code>EndUser.Address1</code></td><td><strong>String</strong><br>End user address line 1. Can be NULL.</td></tr><tr><td><code>EndUser.Address2</code></td><td><strong>String</strong><br>End user address line 2. Can be NULL.</td></tr><tr><td><code>EndUser.Phone</code></td><td><strong>String</strong><br>End user phone number. Can be NULL.</td></tr><tr><td><code>EndUser.Zip</code></td><td><strong>String</strong><br>End user zip. Can be NULL.</td></tr><tr><td><code>EndUser.Language</code></td><td><strong>String</strong><br>ISO 639-1 two-letter language code for the end user language. Can be NULL.</td></tr></tbody></table>

### Request sample

```php
<?php

require ('PATH_TO_AUTH');  // Authentication example: https://knowledgecenter.avangate.com/Integration/Channel_Manager_API/JSON-RPC/02Authentication
require ('PATH_TO_setPartner'); // setPartner example: https://knowledgecenter.avangate.com/Integration/Channel_Manager_API/JSON-RPC/06Reference/Partner/00Set_partner

$subscriptionReferencesList = array('REFERENCE_1', 'REFERENCE_2');

$endUser = new stdClass();
$endUser->FirstName = 'FirstName';
$endUser->LastName = 'LastName';
$endUser->CountryCode = 'US';
$endUser->Email = 'email@example.com';
$endUser->City = 'LA';

$jsonRpcRequest = array (
'jsonrpc' => '2.0',
'id' => $i++,
'method' => 'updateSubscriptionsEndUser',
'params' => array($sessionID, $subscriptionReferencesList, $endUser)
);

var_dump (callRPC((Object)$jsonRpcRequest,$host));
```

## Response parameters

<table><thead><tr><th width="116.2000732421875">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><code>result</code></td><td><strong>Boolean</strong><br>True or false</td></tr></tbody></table>

## Errors

<table><thead><tr><th width="321.4000244140625">Error</th><th>Description</th></tr></thead><tbody><tr><td><strong>NOT_FOUND_PARTNER</strong></td><td>A partner must be set first.</td></tr><tr><td><strong>INVALID_SUBSCRIPTIONS_LIST_SIZE</strong></td><td>Too many subscription references provided.</td></tr><tr><td><strong>INVALID_COUNTRY</strong></td><td>Invalid end user country code.</td></tr><tr><td><strong>INVALID_END_USER_EMAIL</strong></td><td>Invalid end user email provided.</td></tr><tr><td><strong>EMPTY_END_USER_FIRST_NAME</strong></td><td>End user first name is mandatory.</td></tr><tr><td><strong>EMPTY_END_USER_LAST_NAME</strong></td><td>End user last name is mandatory.</td></tr><tr><td><strong>EMPTY_END_USER_CITY</strong></td><td>End user city is mandatory.</td></tr></tbody></table>


---

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