How to migrate from Parallels Pro Control Panel (formerly Ensim Pro) to Plesk Onyx installed on another server?
Migration from Parallels Pro Control Panel for Linux 10.3.6
Note that the transfer process is safe and does not stop any services on the source server (it's basically reading and copying of data). After the transfer is completed, you can verify the migrated objects on the target server, sync data and change domains' DNS records to point to the new server or move IP address from the old server to the new server.
More details in the Migration guide
If your Parallels Pro version is older than 10.3.6 consider upgrading it or use the site import method as explained below.
Migration from Parallels Pro Control Panel for Windows (any version)
Consider migrating individual websites, MySQL databases and e-mail accounts using the site import extension
To start the transfer, it is necessary to create the subscriptions and domains in Plesk Panel on the target server (manually), then start the import separately for each domain from Plesk Panel, specifying FTP, databases' and e-mail accounts' logins/passwords.
If you need migration instructions, advice, or if you would prefer to let Plesk professionals to handle the migration for you, visit our Professional Services page