kintone Administration is where you configure various settings regarding the management and maintenance of kintone, such as user permission settings and customization of features. Only cybozu.cn Administrators and kintone Administrators can configure kintoneAdministration settings.
Reference: Types of Administrators and Permissions

To open the "kintone Administration" screen, click the Settings icon (the gear-shaped icon at the top of kintone), then click kintone Administration.

The following is a list of what you can do in kintone Administration.
For more information, refer to the respective pages.

• Managing apps
• Managing App Templates
• Managing spaces
• Managing space templates
• Managing thread actions
• Managing guests
• Managing permissions
• Managing app groups
• Customization Using JavaScript and CSS
• Changing the header color
• Configuring the Update Options setting
• Configuring the E-mail Notifications setting
• Activating features
• Managing plug-ins
• Configuring the default view for mobile browsers
• Restoring deleted apps (Available only to cybozu.cn Administrators)
• Restoring deleted spaces (Available only to cybozu.cn Administrators)
• Monitoring user access (Available only to cybozu.cn Administrators)

Settings like user or department settings and security settings are configured in Users & System Administration. For details on what you can do in Users & System Administration and configurable settings, refer to cybozu.cnHelp.