The VMware Workspace ONE UEM service or component logs that should be gathered by the administrator to determine a root cause are Device Services logs. Device Services is a component of Workspace ONE UEM that handles device enrollment, management, and communication. Device Services also hosts the AWCM service, which is responsible for delivering push notifications to devices. If iOS devices are unable to enroll using basic users, it could indicate that there is a problem with Device Services configuration, connectivity, or synchronization. The administrator should gather and analyze the Device Services logs to identify and troubleshoot the issue.