Clicking on a vm -> Migrate to Server offers y3 with green status, but after clicking on y3 following message comes in the error log.
Migrating VM 'x' from 'y2' to 'y3'
This operation is not allowed with your current license y3 May 25, 2016 4:06 PM
on command line it gives:
This operation is not allowed because your license lacks a needed feature. Please contact your support representative.