PCS license cannot be installed on the node using
# vzlicupdate -a XXXXX-XXXXX-XXXXX-XXXXX-XXXXX Start activation for code XXXXX-XXXXX-XXXXX-XXXXX-XXXXX... Can't activate this code - Incorrect product version format
vzlicupdate is used for updating installed Parallels Cloud Server licenses, for transferring already activated license to other hardware node, or for activating Product activation code.
prlsrvctl install-license command to install a new license on the node, e.g:
# prlsrvctl install-license -k XXXXX-XXXXX-XXXXX-XXXXX-XXXXX The license has been successfully installed.