title: Azure Data Factory - Data Flow - Join- Broadcast
body: <p>On 30th April 2020, Azure Data Factory Data Flows show a new option on the Optimize Tab of the Join Activity in the Data Flow. I get a validation error on the pipeline that atleast one side should be a part of the Broadcast. When I fixed the validation issues and published the data factory all of the data flows have broken. Please find attached the snapshot. 
  <a href="https://i.stack.imgur.com/vrXn2.png" rel="nofollow noreferrer">enter image description here</a></p>