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**Apigee X** documentation](http://cloud.google.com/apigee/docs/api-platform/system-administration/about-global-users). info

> [!NOTE]
> **Private Cloud:** **Edge on-premises installation only.**In a Cloud-based installation of Edge, Apigee functions in the role of read-only system administrator. You can only assign global users to the read-only system administrator role in an Edge for the Private Cloud installation.

An **Edge read-only system administrator** has access to the same
entities as an system administrator but access is read-only. A read-only system administrator
can:

- Perform the operations of the [Edge built-in roles](https://docs.apigee.com/api-platform/system-administration/edge-built-roles) for all organizations
- View global user details
- View organization, environment, and virtual host configurations
- Make read-only calls to all Edge system administrative APIs

> [!NOTE]
> **Note:** While it is not required, you can assign a read-only system administrator to an organization, typically as a read-only organization administrator. Unless assigned to an organization, the read-only system administrator cannot log in to the Edge management UI.