You can migrate an NSX-V environment and its existing integration with vRealize Automation to a new NSX-T environment.
You must deploy a new NSX-T environment for this migration. You cannot merge vRealize Automation deployments from your NSX-V environment into an existing NSX-T environment, which is preconfigured and used.
In addition to setting up a new NSX-T environment in advance, migration preparation might also require you to modify your existing NSX-V environment.
You should be familiar with NSX-T concepts, vRealize Automation concepts, and administration tasks in both environments before you migrate.