Data Loader: De-Duplicate Records during Import

B.

The statement "The Data Loader can de-duplicate records during import" is true.

The Data Loader is a tool provided by Salesforce to bulk import, export, and update data. When importing data using the Data Loader, there is an option to enable the "Upsert" operation, which can be used to update existing records or insert new ones based on a specified field (usually a unique identifier like the record ID).

When upserting records, the Data Loader can also be configured to identify and merge duplicate records based on the same specified field. This is done using the "External ID" field mapping option, where a field in the import file is designated as the unique identifier and the Data Loader checks for existing records with the same value in that field.

If the "Upsert" operation is selected and the "External ID" field mapping is enabled, the Data Loader will first check for existing records with the same value in the specified field. If duplicates are found, the Data Loader will merge the data from the import file with the existing record, updating any fields that have changed and preserving the original record ID.

In summary, the Data Loader can de-duplicate records during import using the "Upsert" operation and the "External ID" field mapping option.