It is impossible to create Virtual Machine without specifying IP address using Parallels Virtual Automation Management Node interface.
By default special keyword
<auto> is written in the IP address field. Leaving it as is will lead to attempt to allocate IP address automatically, from the IP Address Pool. If IP Address Pool does not exist it will lead to an error.
The issue is recognized as a product bug with ID #PVA-34422.
The issue will be fixed in one of the future updates.
For now, as a workaround, it is suggested to remove
<auto> from the IP Address field, it will allow to create VM successfully without specifying IP address explicitly in a configuration file. successfully.