How can Salesforce be utilized to prevent the ingestion of duplicates when integrating large datasets?

Salesforce provides robust duplicate management settings that can actively prevent the ingestion of duplicate records during the integration of large datasets. By enabling these settings, you can configure duplicate rules that will automatically identify and block the entry of records that match predefined criteria, such as email address or other key identifiers. This proactive approach helps maintain data integrity from the outset by stopping duplicates before they can enter the system.

In contrast, manual procedures for data cleansing can be reactive and often time-consuming, making them less effective for large-scale integrations. Relying solely on Apex triggers for data integrity checks requires significant development effort and doesn't inherently prevent duplicates at the point of data entry. Using Salesforce's native import wizard is useful for straightforward data imports but lacks the comprehensive controls and customization options that dedicated duplicate management settings provide. Therefore, leveraging the built-in duplicate management capabilities ensures a more efficient and automated way to maintain clean data during integrations.