When upgrading to Veeam Backup for Microsoft Office 365 v2 from an earlier version the following error is received:
Additionally, the latest Veeam.Archiver.Service log file found under C:\ProgramData\Veeam\Backup365\Logs contains the following:
25.7.2018 10:14:12 6 (5940) Upgrading backup jobs... 25.7.2018 10:14:12 4 (4588) Error: Job with the specified name already exists. 25.7.2018 10:14:12 4 (4588) Type: System.Exception 25.7.2018 10:14:12 4 (4588) Stack: 25.7.2018 10:14:12 4 (4588) at Veeam.Archiver.Controller.JobConfigVerifier.VerifyCreatedJob(JobConfig config, BackupScopeConfig
Under rare circumstances records on backup jobs might be duplicated in a configuration database. This does not affect an already existing installation, yet fails a duplicates check during the upgrade.
Please contact Veeam Technical support for the fix.