The new organization is created. The superuser or organization admin user (jasperadmin) selects Manage>Users from the main menu to configure user accounts in the organization. After you define a second organization the JasperReports Server login page displays an additional field with which each user specifies their organization ID. After logging in the organization information is stored in a browser cookie and is not requested again unless the cookie is cleared. Additionally you can provide your users with a URL that specifies the organization so that they are no longer prompted for their organization ID.
For more information see the JasperReports Server Administration Guide section on Managing Organizations.