I try to delete a Parallels Plesk Automation (PPA) node from PBA-S. No accounts or service templates are used on PPA but I get the error message:
Cannot delete the Hardware Node. The hosting plans are detected, that use service templates created on this Hardware Node.
There are some hosting plans of POA type exist in PBA-S.
Please remove these hosting plans if they are not in use and then delete the node.