# lock

Call the **lock** API to lock the card through the Mobile Payment Provider (MPP) app.

> **Note**: The callback for successful card locking is notified to the MPP app through the global wallet status listener, TokenStatusListener. For more information, see the [TokenStatusListener](set_token_status_listener) API.

## Method signature

```java
void lock();
```

## Request parameters

N/A

## Response parameters

N/A

## Sample

```kotlin
manager = ACTapManager.getInstance(this.getApplication());
manager.lock();
```