Yes indeed,
I had the confirmation in the documenation as well :
"Migration from Existing vSphere to VCF
VMware Cloud Foundation is a greenfield installation only, meaning that Cloud Foundation creates a new vSphere
infrastructure and Single Sign-On domain. Existing workloads running on older vSphere versions cannot be
managed from Cloud Foundation"
I thank you for your response.
It seems that I have to migrate and lost the source site otherwise I stop with VMware Cloud Foundation
