Storage Migration Service doesn't appear

swansoer Justine8 Good news!  Looks like there is a workaround and that Microsoft plans to fix this "soon" in future evaluation versions of Windows Server.  I wanted to share the current solution (and cause), as I ran into the same issue attempting to test Storage Migration Service with WAC on eval versions of Windows Server that come with the https://www.microsoft.com/en-us/evalcenter/evaluate-lab-kit

https://docs.microsoft.com/en-us/windows-server/storage/storage-migration-service/known-issues or Windows Server 2019 Essentials edition

When using Windows Admin Center to connect to a https://www.microsoft.com/evalcenter/evaluate-windows-server-2019 or Windows Server 2019 Essentials edition, there isn't an option to manage the Storage Migration Service. Storage Migration Service also isn't included in Roles and Features.

This issue is caused by a servicing issue in the Evaluation media of Windows Server 2019 and Windows Server 2019 Essentials.

To work around this issue for evaluation, install a retail, MSDN, OEM, or Volume License version of Windows Server 2019 and don't activate it. Without activation, all editions of Windows Server operate in evaluation mode for 180 days.

We have fixed this issue in a later release of Windows Server.