KB1065: Job fails with error "The create snapshot ...
https://www.veeam.com/kb106519.07.2011 · The snapshot cannot be created if the "Enable VMware tools quiescence" option is enabled in the job's properties. The same operation fails when trying to take a Snapshot via vSphere client with the option "Snapshot the virtual machine's memory" unchecked and the "Quiesce guest file system (Needs VMware Tools installed)" option enabled.