Hi,
Migrating External PSC to embedded PSC is now supported in ESXi 6.7 Update 1.
https://blogs.vmware.com/vsphere/2018/08/under-the-hood-vsphere-6-7-update-1.html
https://blogs.vmware.com/vsphere/2018/11/external-platform-services-controller-a-thing-of-the-past.h...
Regards,
Sachin Bhardwaj
