KB1065: Job fails with error "The create snapshot operation ...
www.veeam.com › kb1065Jul 19, 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.
KB1790: Veeam Backup Temporary Snapshot
https://www.veeam.com/kb179009.07.2013 · Solution. If a snapshot named VEEAM BACKUP TEMPORARY SNAPSHOT is found on a VM, confirm that no active jobs are running in Veeam Backup & Replication. Then, remove the snapshot using the Delete or Delete All buttons in the Snapshot Manager. Note: A VMware Snapshot is a delta file containing all changes to a VM since the creation of that snapshot.