# alter users

The `alter users` command updates system-level user information, including changes to user contact information, alert delivery preferences, and system-level Aizen roles. You must be a user with the AIZEN\_ADMIN role to run this command.

## Syntax

```
alter users <system users config file>
```

## Parameters

| Parameter                    | Description                                                                                                                                                                                                                      |
| ---------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `<system users config file>` | A json file containing a list of users and their login IDs, names, contact information (email address or phone number), alert preferences, and system-level roles. The system-level roles are AIZEN\_ADMIN and PROJECT\_CREATOR. |

## Example

```
alter users system_users_config.json
```

See the [#example-system\_users\_config.json](https://aizen-corp.gitbook.io/docs/getting-started/managing-users-and-roles/adding-users#example-system_users_config.json "mention").