Microsoft ADF Data Flows are currently in preview. Please fill out this form to request access to this new feature in Data Factory: http://aka.ms/dataflowpreview.
Data Flows in ADF enable data lineage in the ADF monitoring view so that you can capture and quickly identify the sources of data flow column lineage.
Full documentation, videos and getting started guides for ADF Data Flow available here: http://aka.ms/adfdataflowdocs.