Data duplication can occur due to several reasons:
Manual Data Entry Errors: Human errors during data entry can lead to duplicate records. System Integrations: Merging data from different systems without proper data cleansing can result in duplicates. Lack of Unique Identifiers: Absence of unique keys or identifiers in databases makes it easier for duplicates to occur during data uploads. Software Bugs: Faulty software can inadvertently create duplicate records.