# AuthenticatedEnterpriseID()

Returns the enterprise ID of the current authenticated landing page user. Use this function only with Microsites when using Sender Authenticated Redirection. Not for use with CloudPages.

## Availability

<table>
  <tr>
    <td>Marketing Cloud Engagement</td>
    <td>✅ Yes</td>
  </tr>
  <tr>
    <td>Marketing Cloud Next</td>
    <td>❌ No</td>
  </tr>
</table>

## Syntax

The `AuthenticatedEnterpriseID()` function doesn’t accept any parameters.

## Usage

You can call this function without passing any parameters.

```
%%[ Output(AuthenticatedEmployeeUserName()) ]%%
```

The example outputs the enterprise ID of an authenticated landing page user who is accessing the page.