If you are planning a migration from Parallels Plesk Panel to cPanel & WHM in the near future, do not upgrade Plesk Panel to version 10.
Parallels Plesk Panel 10 incorporates a new authentication model that does not rely upon the /etc/passwd system database. This change prevents successful migrations from Plesk 10 systems to cPanel & WHM systems.
The cPanel & WHM development team is working on a solution to include in future releases of cPanel & WHM.
Our migration team currently supports migration from the following platforms: