the standard ADIF export from contest log program didn't include contest informations (stx, srx_string,contest_id)
If the datasets are imported in LOG4OM next ADIF import with completed file (includes the fields) does nothing...
Deleting all imported QSOs could be a way.
Is there a possibility to delete more than one qso at once (in this case: 390 QSOs

73 Wolfgang DK1WS