> 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/soap-api-reference/soap-api-6.0/api-requests/customer/update-customer.md).

# Update customer

Use the **updateCustomerInformation** method to update the details of a customer entity from the 2Checkout system.

## Request parameters

<table><thead><tr><th width="262">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><code>sessionID</code></td><td><strong>Required (string)</strong><br>Session identifier, the output of the <strong>Login</strong> method. Include <code>sessionID</code> into all your requests. 2Checkout throws an exception if the values are incorrect. The <code>sessionID</code> expires in <strong>10 minutes</strong>.</td></tr><tr><td><a href="/pages/l51iTomfeHH2OmdQbRlz"><code>Customer</code></a></td><td><strong>Object (required)</strong><br>Use this object to update customer information.</td></tr><tr><td><code>UpdateEndUserSubscriptions</code></td><td><strong>Optional (boolean)</strong><br>You can push the changes made on the customer info to the end-user details for all subscriptions belonging to this customer. Set <strong>true</strong> to have the changes reflected on the end-user details for all subscriptions. If <strong>null</strong> or <strong>false</strong>, the changes are made only at the customer level. Default value is false.</td></tr></tbody></table>

### Request sample

```php
<?php
$host   = "https://api.2checkout.com";
$client = new SoapClient($host . "/soap/4.0/?wsdl", array(
    'location' => $host . "/soap/4.0/",
    "stream_context" => stream_context_create(array(
        'ssl' => array(
            'verify_peer' => false,
            'verify_peer_name' => false
        )
    ))
));

function hmac($key, $data)
{
    $b = 64; // byte length for md5
    if (strlen($key) > $b) {
        $key = pack("H*", md5($key));
    }
    
    $key    = str_pad($key, $b, chr(0x00));
    $ipad   = str_pad('', $b, chr(0x36));
    $opad   = str_pad('', $b, chr(0x5c));
    $k_ipad = $key ^ $ipad;
    $k_opad = $key ^ $opad;
    return md5($k_opad . pack("H*", md5($k_ipad . $data)));
}

$merchantCode = "YOUR_MERCHANT_CODE";
$key = "YOUR_SECRET_KEY";
$now = gmdate('Y-m-d H:i:s');
$string = strlen($merchantCode) . $merchantCode . strlen($now) . $now;
$hash   = hmac($key, $string);

try {
    $sessionID = $client->login($merchantCode, $now, $hash);
} catch (SoapFault $e) {
    echo "Authentication: " . $e->getMessage();
    exit;
}

$customerReference = 298084139;
$externalCustomerReference = 'Apitest123456';

try {
    $customerInfo = $client->getCustomerInformation($sessionID, $customerReference, $externalCustomerReference);
} catch (SoapFault $e) {
    echo "customerInfo: " . $e->getMessage();
    exit;
}

$customerInfo->Email = 'newemailaddressupdated@email.com';

// New Credit object (optional)
$customerInfo->Credit = new stdClass();
$customerInfo->Credit->Limit = 51.0;       // float
$customerInfo->Credit->Remaining = 21.0;   // float
$customerInfo->Credit->Currency = 'EUR';   // string

$UpdateEndUserSubscriptions = false;

try {
    $updatedCustomerInfo = $client->updateCustomerInformation($sessionID, $customerInfo, $UpdateEndUserSubscriptions);
} catch (SoapFault $e) {
    echo "updatedCustomerInfo: " . $e->getMessage();
    exit;
}

var_dump("updatedCustomerInfo", $updatedCustomerInfo);
```

## Response parameter

<table><thead><tr><th width="108.39996337890625">Type</th><th>Description</th></tr></thead><tbody><tr><td><strong>Boolean</strong></td><td><strong>true</strong> or <strong>false</strong> depending on whether or not the operation succeeded.</td></tr></tbody></table>


---

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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.2checkout.com/soap-api-reference/soap-api-6.0/api-requests/customer/update-customer.md?ask=<question>&goal=<endgoal>
```

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