# Notify users about Zoom apps in meetings

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> The code on this page works with either the **default UI** or the **custom UI**.

Users in a meeting or webinar are notified and have the option to agree to have the meeting
data accessed by third party applications like Zoom Apps or SDK applications. When one of
these apps is present in a meeting, users must see an Active App Notifier (AAN). This keeps
users informed about who can see their data and which data in the meeting is currently exposed.

The SDK provides a pre-built UI containing the AAN information. To display this UI, get the
original point and the parent window to display the AAN UI and pass it into the SDK.

```cpp
IMeetingAANController* aanController =
    meetingService ? meetingService->GetMeetingAANController() : nullptr;
SDKError err = aanController->ShowAANPanel(100, 100);
```

The SDK also lets you hide the AAN UI programmatically.

```cpp
aanController->HideAANPanel();
```

In addition to the AAN UI, there is a similar legal notice UI available related to the
[Zoom AI Companion](https://www.zoom.com/en/blog/zoom-ai-companion/). This legal notice
is displayed in a similar way as the AAN UI, but it uses a different method.

```cpp
IMeetingAANController* aanController =
    meetingService ? meetingService->GetMeetingAANController() : nullptr;

aanController->ShowDynamicNoticeForAICompanionPanel(100, 100);
 // ...
aanController->HideDynamicNoticeForAICompanionPanel();
```

For information about various legal notices you must include in your custom meeting UI,
see [UI legal notices](/docs/meeting-sdk/ui-notices/).

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