You can follow the progress of the export/import. The unique GGUID field is also exported during the export.
Save opens a window where you can save the log under a name. Here, data which has not been imported is displayed.
Records are not displayed when for instance a key field has not been definite and otherwise duplicates would be created.
If you save data records that have not been imported as CSV files, then you can change and renew the log files. Or, alternatively, you check the import settings.
You can avoid potential duplicates by importing the original import file again.
ID Identification number
Data record number: This is the data record number for the source file that was just copied and which triggered a notification.
Text: Note on the data record. Messages and possible errors are displayed.