This settings page is where you configure all settings related to export groups and jobs. They are valid for all load groups and jobs and most of them can be overwritten individually at group or job level.
Validation Level: Load groups and jobs are validated either on demand (from the Load List Context Menu) or automatically before thy run. Validation consists of checking a group or job fields to make sure it can run. Each check box represents an area of validation that you can choose to enable or disable.
It's recommended to always select all the options.
Backup Data File after each Load: when this box is checked, data files are automatically backed up in the "LoadBackup" folder after each load job's run. This is a default value and it can be changed individually for each group or job in the Advanced Parameters.
Treat empty strings as DB NULL: when this box is checked, empty strings are treated as NULL for the database (i.e. no value is inserted in the database).
Column Definitions Automatic Load: Column definitions are information describing the columns contained in Data Files and Destination Tables. These settings indicate whether column definitions are reloaded automatically every time a change is made.