@jr-m4 Hi there... A warm VMware V2V migration should indeed start up by itself, so I'm not sure what you are experiencing is normal. This is documented, as you've probably seen, at: https://xcp-ng.org/blog/2022/10/19/migrate-from-vmware-to-xcp-ng/
That said, in addition, if you want your imported VMs to start up automatically every time your XCP-ng server or pool boots up, you have to enable the Auto Power On / Auto Start configuration.
For this to work, it must be enabled at both the Pool level and the individual VM level.
Method using Xen Orchestra (Recommended):
Go to the VM tab, select your imported VM, and navigate to the Advanced view.
Toggle the Auto power on switch to ON. (XO will handle configuring both the host pool and the VM flags for you).
Or alternatively, via the bash shell:
--> Get your Pool UUID
xe pool-list
--> Set the auto_poweron parameter to true
xe pool-param-set uuid=<POOL_UUID> other-config:auto_poweron=true
Enable Autostart on the Imported VM:
--> Get your VM UUID
xe vm-list name-label="Your_Imported_VM"
--> Set the VM param to true
xe vm-param-set uuid=<VM_UUID> other-config:auto_poweron=true