Fivetran has introduced a new feature that allows users to block specific columns from replicating, protecting personally identifiable information (PII). This helps ensure compliance with data protection regulations such as GDPR. The Column Blocking feature is available for Salesforce, NetSuite, Marketo, MySQL, Oracle, Postgres, and SQL Server connectors. Users can access this feature by unchecking the columns they want to omit from syncing in their connector details page.