If you enable reports in Institution Settings > Reports, reports will be available around the time when files of records have been output for your library or, in the case of WorldCat Holdings reports, after there are changes in your holdings in WorldCat. You will not receive an email on days when there is no activity.
Data sync collections produce processing and exception reports per file for every Bibliographic record provided along with results for the associated WorldCat holdings update and LBD request.