Merge pull request #95925 from kromerm/dataflow-1

Update data-flow-sink.md

Author: PRMerger17

articles/data-factory/data-flow-sink.md

@@ -23,7 +23,7 @@ To sink all incoming fields, turn on **Auto Map**. To choose the fields to sink
 ## Output 
 For Azure Blob storage or Data Lake Storage sink types, output the transformed data into a folder. Spark generates partitioned output data files based on the partitioning scheme that the sink transformation uses. 
 
-You can set the partitioning scheme from the **Optimize** tab. If you want Data Factory to merge your output into a single file, select **Single partition**.
+You can set the partitioning scheme from the **Optimize** tab. If you want Data Factory to merge your output into a single file, select **Single partition**. If you wish to maintain or create partitioned folders, use **Key partitioning** and set the keys you wish to use for partitioned folder structures.
 
 ![Options on the Optimize tab](media/data-flow/opt001.png "sink options")