Veeam Agent for Microsoft Windows copies transaction log files from the log archive destination (set by the Microsoft SQL Server administrator) to a temporary folder on the Veeam Agent computer file system. By default the path is: C:\ProgramData\Veeam\Endpoint\SqlLogBackup. In case if the default destanation should be changed, you can specify it in SqlTempLogPath(STRING) registry key.
Important: the key should be created on the Veeam Agent for Windows machine!
KEY: HKEY_LOCAL_MACHINE\SOFTWARE\Veeam\Veeam Backup and Replication
VALUE: path to desired location (should be without \ in the end)