> 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/json-rpc-api-reference/json-rpc-api-6.0/api-requests/promotions/update-promotion.md).

# Update promotion

Use the **updatePromotion** method to alter the details of an existing promotion.

## Request parameters

<table><thead><tr><th width="158.5333251953125">Parameter</th><th>Type / Description</th></tr></thead><tbody><tr><td><code>sessionID</code></td><td><strong>Required (string)</strong><br>Output of the <strong>Login</strong> method.</td></tr><tr><td><a href="/pages/0XvggggTMGebHEosbLWm"><code>Promotion</code></a></td><td><strong>Required (object)</strong><br>Promotion object that you want to update.</td></tr></tbody></table>

### Request sample

```php
<?php
require ('PATH_TO_AUTH');

// Retrieve promotion details

$promotionCode = 'PROMOTION_CODE'; // code of the promotion that you want to update

$jsonRpcRequest = array (
  'jsonrpc' => '2.0',
  'id' => $i++,
  'method' => 'getPromotion',
  'params' => array($sessionID, $promotionCode)
);
//var_dump (callRPC((Object)$jsonRpcRequest, $host));

// Keep the promotion you want to update in $existingPromotion
$existingPromotion = callRPC((Object)$jsonRpcRequest, $host);
// Set the fields to update
$existingPromotion->Description = 'Updated description';

// Update the promotion
$jsonRpcRequest = array (
  'jsonrpc' => '2.0',
  'id' => $i++,
  'method' => 'updatePromotion',
  'params' => array($sessionID, $existingPromotion)
);
var_dump (callRPC((Object)$jsonRpcRequest, $host));
```

## Response parameters

<table><thead><tr><th width="144.6666259765625">Parameter</th><th>Description</th></tr></thead><tbody><tr><td><a href="/pages/d1cfbc99f415fd4153e045f9eba37aca5ff6431c"><code>Promotion</code></a></td><td>Updated promotion object.</td></tr></tbody></table>


---

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