---
title: Callback
slug: ki/callback
description: Learn about Klavi's callback feature for API requests, where the backend notifies the client of final status through a callback. Discover how this notification resembles the result obtained from actively checking the status, and understand the importance 
docTags: 
createdAt: 2023-06-30T03:33:30.510Z
---

When the API such as submitCredentials()/updateProducts()/submitMFAInfo() is requested, the Klavi backend will notify the client of the final status of this task by callback after data collection and processing. The notification is the same as the result of client's active call to checkStatus().

If the partner chooses the callback mode, it needs to provide the URL of the callback to work normally after the configuration is completed.

**Body:**

```json
{
    "code":200,
    "msg":"Solicitação realizada com sucesso",
    "data":{
        "extendInfo":null,
        "statusType":1,
        "returnCode":403,
        "returnMsg":"Bank service error"
    }
}
```