How are duplicates defined?

Duplicates are defined by you, the user, in your CleanCRM, CleanCSV, and CleanImport settings. You can choose which fields to use for matching, the type of matching to use (Don’t Match, Exact, Starts With, and Fuzzy), and advanced match settings for each field. See the Match Settings section of CleanCRM Help, CleanCSV Help, or CleanImport Help for more information on defining duplicates.