Backup job fails because technician Bob migrated a VMware virtual machine and didn't remember to update the Veeam backup job. The next morning, technician Clive sees the failure and reactively changes the backup job to the virtual machines new location. However, Clive can't re-run the backup job during the day as it is a critical machine. The schedule is set to backup the virtual machine once a week, the next being in 6 days. Technician Clive can change the schedule so that the backup runs tonight, the next day he will have to change it back to the old schedule. Alternatively, Clive can stay up late that night and manually retry the job.
Clive's life could be made easier if there was a 'One-time schedule' option or similar in the Veeam Backup and Replication console. That way, Clive doesn't have to modify the existing schedule and change it back after the backup completes. Clive can just ask the backup job to run that evening too.
Great product, keep up the good work

Shaun