Hi @akdav 

I have the same issue as yours and azure support confirmed SFTP events are not supported: Storage account file event is not triggered for Azure Databricks on SFTP upload - Microsoft Q&A

Also, setup by Databricks is not subscribing to SFTP events. Only to Blob ones, which is triggered when you use data studio / Azure UI etc.

Does WinCSP upload by to the storage account by SFTP or it uses HTTPS? I can't get how these are triggered for you, such a headache to discover.