# Occlusion Alerts

Occlusion Alerts notify users when a camera’s view is blocked or obscured, helping security teams ensure that all cameras maintain clear visibility of key areas.

{% hint style="warning" %}

* Occlusion Alerts may take up to one day to calibrate as the system learns the scene and creates a baseline reference image. Once this baseline is established, the camera will begin generating alerts when its view becomes obstructed.
* When an occlusion occurs, the camera waits about two minutes before sending the alert to minimize false positives.
  {% endhint %}

{% hint style="danger" %}

* You need [Site Admin permissions](/command/users-and-permissions/roles-and-permissions-for-command.md) for the site a camera is in to configure occlusion alerts.
* Cameras in LPR mode do not support occlusion alerts. 
  {% endhint %}

***

## **Configure occlusion alerts**

### **Create Alert > Events**

{% stepper %}
{% step %}
**On the Command homepage, left navigation, click Alerts .**
{% endstep %}

{% step %}
**At the top, click New Alert.**
{% endstep %}

{% step %}
**On Select Event, choose Camera > Occlusion Detection.**
{% endstep %}

{% step %}
**On Cameras:**

1. Choose to receive alerts from **Sites** or **Individual Cameras**.
2. Click **Done** to continue.
   {% endstep %}

{% step %}
**Click Done and continue with the alert** [**notification schedule**](#create-alert-greater-than-cameras)**.**
{% endstep %}
{% endstepper %}

### Create Alert > Notification Schedule

{% stepper %}
{% step %}
**On Notification Schedule, specify the days and times for the alerts to send notifications. Alerts generate 24/7 by default.**

<div align="left" data-with-frame="true"><img src="/files/uYML32hRYgJjp2h8VugP" alt=""></div>
{% endstep %}

{% step %}
**Click Done and continue with the alert** [**notification**](#create-alert-greater-than-notification)**.**
{% endstep %}
{% endstepper %}

### Create Alert > Notification

{% stepper %}
{% step %}
**On Notification, add users individually or assign the alert to a group.**
{% endstep %}

{% step %}
**Select the dropdown menu next to a user or group to choose their notification method(s). Recipients can be notified via push, SMS, messaging platform alerts, or email notifications.**

<div align="left" data-with-frame="true"><figure><img src="/files/joJ6V2JNVhYtAyRboJyi" alt="" width="438"><figcaption></figcaption></figure></div>

{% hint style="info" %}
Any recipient added to this alert will see it appear under the **Shared Alerts** section of their **Alerts** page.
{% endhint %}
{% endstep %}

{% step %}
**(Optional) By default, you will be an alert recipient. Select the dropdown menu and click Delete to remove yourself.**
{% endstep %}

{% step %}
**Click Done and continue with the alert's** [**optional settings**](#optional-settings)**, or** [**finish the alert**](#finish-the-alert)**.**&#x20;
{% endstep %}
{% endstepper %}

### Optional settings

#### Create Alert > Operations

{% stepper %}
{% step %}
**Toggle on Route to Operations to create a ticket from the alert.**&#x20;
{% endstep %}

{% step %}
**(Optional) Select Ticket Instructions to add information to the ticket and click Done.**
{% endstep %}

{% step %}
**Click Done and continue to** [**finish the alert**](#finish-the-alert)**.**
{% endstep %}
{% endstepper %}

#### Create Alert > Device Action

In addition to notifying individuals, you can configure your horn speaker to play when an alert is triggered. These alerts can be text-to-speech or an uploaded MP3 file.

{% stepper %}
{% step %}
**On Device Action, select the horn speaker(s) you want to play your message.**
{% endstep %}

{% step %}
**Select your notification preference (Text to Speech or Audio File).**

a. For **Text to Speech,** enter a message up to 200 characters.\
b. For **Audio File,** drag and drop the file or click **choose a file** to upload your audio clip.

<div align="left" data-with-frame="true"><img src="/files/cmdMXVOCnchM5sxvJbCQ" alt="" width="395"></div>
{% endstep %}

{% step %}
**Click Done and continue to** [**finish the alert**](#finish-the-alert)**.**
{% endstep %}
{% endstepper %}

### Finish the alert

{% stepper %}
{% step %}
**In the bottom right of the configuration window, click Next.**
{% endstep %}

{% step %}
**Enter a descriptive name for the alert.**
{% endstep %}

{% step %}
**Click Done to complete the setup.**

<div align="left" data-with-frame="true"><figure><img src="/files/T5Nvt7tMTQqgMsGZ7Vuh" alt="" width="436"><figcaption></figcaption></figure></div>
{% endstep %}
{% endstepper %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://help.verkada.com/verkada-cameras/analytics/create-camera-event-alerts/occlusion-alerts.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.