What should I check when duplicate items appear after Outlook migration

After migrating Outlook data from one system to another, it is a good idea to review the mailbox structure and verify that the imported information appears as expected. Repeated items may occur when existing data is imported more than once or when several sources contain overlapping information. An outlook duplicate items remover can help identify repeated Outlook entries. Before making changes, users should keep a backup of important data and review the results carefully to avoid removing information they still need