# Event

The Event object is of type *PsObject* and represents the [registeration](/code_reference/commandlets/register-vaultevent) to a specific Vault event.

## Syntax

```PowerShell
$event.SourceIdentifier
```

Following properties are available :

| Type                                                  | Name             | Description                                                                                                            |
|-------------------------------------------------------|------------------|------------------------------------------------------------------------------------------------------------------------|
| [VaultEvent](/code_reference/objects/event_mappings) | Name             | The name of the registered Vault event.                                                                                |
| String                                                | SourceIdentifier | Unique string which represents the registered event. Required for [](/code_reference/commandlets/unregister-vaultevent). |
| String / [ScriptBlock][]                              | Command          | The powershell script which gets executed when the event gets fired.                                                   |

  [ScriptBlock]: https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_script_blocks

## Examples

**Registered event with Command specified as function name**

```PowerShell
Name             : UpdateFileStates_Restrictions
SourceIdentifier : 6090dbfa-bbb4-4d31-becf-4b63c8111a4f
Command          : CanTriggerDwfJob
```

**Properties of an event with Command specified as ScriptBlock**

```PowerShell
Name             : UpdateFileStates_Post
SourceIdentifier : f4e99f68-fcfb-4d1c-b0df-4ae5611de2b6

Command          : {
	           param()
	           write-host 'This ScriptBlock gets executed when the Vault event is raised!'
	           }
```