Thanks for the suggestion. We are looking into this scenario for a future release. 7557959
Dynamic Data Masking feature is now on our near-term plan. Thanks for your feedback.
Thank you for voting on this feature. Please describe your scenario in the thread below. We currently have many migration solutions from SQL Server to SQL Data Warehouse such as Azure Data Factory and Redgate through the Quick Load Azure portal experience (link below). If this is a continuous replication process, we’d love to understand your hybrid scenario so please comment below.
We are looking into this capability for a future release.