# Configure Access Event Alerts
You can enable alerts for a variety of access control events, depending on your configuration needs. For more information about the access control event types see [below](#h_7c5fc24bcf).
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To configure alerts, you **must** be an Access Admin and an Access Site Admin.
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## Configure access control event alerts
### Create Alert > Events
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**Log in to Verkada Command.**
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**On the Command homepage, left navigation, click Alerts.**
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**At the top, click New Alert.**
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**On Select Event, select the Access product type.**
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**Search for or select an event to configure.**
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**(Optional) Some event types are general and have more specific options once you select them. If prompted, complete any additional configuration steps then click Next.**
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**Select your devices/sites, based on the alert type you can configure events to be device-specific, site-specific, or all devices.**
* When you select **Sites** or **All Devices**, new devices added after alert creation will automatically generate alerts.
Click **Done** to continue.
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**(Optional) Some event types have additional setup steps. If that is the case, click the additional steps and follow the prompts in the configuration window.**
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**Click Done and continue with the alert** [**recipients**](#h_07af71f9c8)**.**
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Alerts for door opened, door held open (DHO), door forced open (DFO), or tailgating events only trigger if you have a door position indicator (DPI) installed.
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### Create Alert > Recipients
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**On Recipients, you can search for or select other Command users individually or you can assign the alert to a group.**
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**Select the dropdown menu next to a user or group to choose their notification method(s). Recipients can be notified either via a push notification, SMS, or email.**
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**(Optional) By default, you will be added to the alert created. To remove yourself, select the dropdown menu and click Delete.**
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**Click Done and continue with the alert** [**notification schedule**](#h_1ba0bf0f43)**.**
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Any recipient added to this alert will see it appear under the **Shared Alerts** section of their **Alerts** page.
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### Create Alert > Notification Schedule
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**On Notification Schedule, you must specify what days and times you want alerts to be sent. By default, events are generated 24/7.**
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**Click Done and continue with the alert** [**device actions**](#h_831e90fc85) **or** [**finish the alert**](#h_2c78ca799a)**.**
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### 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.
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**On Device Action, select the horn speaker(s) you want to play your message.**
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**Select your device’s notification preference (Text to Speech or Audio File).**
a. For **Text to Speech,** enter the desired message up to 200 characters.\
b. For **Audio File,** drag and drop the file or click **choose a file** to upload your audio clip.
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**Click Done and continue with** [**finish the alert**](#h_2c78ca799a)**.**
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### Finish the alert
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**Click Next on the bottom right of the configuration window once you have configured all the desired alert settings.**
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**Enter a descriptive name for the alert.**
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**Click Done and you will start to receive alerts.**
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## Understand the various access control event types
### Door events
| Alert Type | Description |
| -------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Door Forced Open (DFO)** | Access controlled or locked door is opened without a request to exit (REX) detected or a user who has been granted access. |
| **Door Held Open (DHO)** | Door is held open. In **Installer Settings**, you can monitor this and set how long the door must be held open before an alert is sent. |
| **Door Opened** | Door is opened. |
| **Wireless Lock Tamper** | Currently available for Assa Abloy and Allegion wireless locks. Detection includes these scenarios:
The device has been partially or fully disassembled.
Vibration or movement of the device occurs.
See Set Up Assa Abloy Aperio Wireless Locks.
|
| **Access Granted** | User is granted access to unlock an access-controlled door. |
| **Access Rejected** | User is denied access to unlock an access-controlled door. |
| **Tailgating Detected** | Tailgating is detected at a door by a nearby context camera. |
| **AUX Unlock** | Door unlocked using a button wired into an AUX input. |
| **REX Unlock** | Request to exit (REX) is triggered and unlocks a door. In **Hardware** **Settings**, you can configure how long to keep a door unlocked when a REX unlocks it. |
| **Schedule Changed** | Door state changed based on the door’s current door schedule, a schedule exception, or when the door is assigned a new non-default door schedule. |
| **Low Battery** | Wireless lock’s battery power is low. |
### Access controller events
| Alert Type | Description |
| ----------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Access Controller Offline** | Access controller is unresponsive and is not working properly. See [Restart an Access Controller](https://help.verkada.com/access-control/troubleshooting/access-control-hardware-checks/restart-an-access-controller). |
| **Access Controller Tamper** | Access controller’s enclosure lid opened. |
| **Fire Alarm Released** | Fire alarm is released. |
| **Fire Alarm Triggered** | First alarm is triggered. |
| **Supervised Wiring Issue** | Wiring cut or shorted for access controller’s DPI, REX, or AUX Input that has supervised wiring enabled with end-of-line (EOL) resistors installed. |
### Area events
| Alert Type | Description |
| ----------------------------- | ---------------------------------------------------------------------------------- |
| **Double Entrance Violation** | Same credential used to enter an area twice without being used to exit in-between. |
| **Double Exit Violation** | Same credential used to exit an area twice without being used to enter in-between. |
### AUX output events
| Alert Type | Description |
| -------------------------- | ----------------------------------------------------------- |
| **AUX Output Activated** | AUX output activated in response to an activation event. |
| **AUX Output Deactivated** | AUX output deactivated in response to a deactivation event. |
### Other events
| Alert Type | Description |
| --------------------------- | -------------------------------------------- |
| **Lockdown Triggered** | An emergency lockdown scenario is activated. |
| **AUX Input State Changed** | High signal detected for AUX input. |
***
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**Prefer to see it in action?** Check out the [video tutorial](https://www.youtube.com/watch?v=dCwJUqtWB84).
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