Merge pull request #10536 from Luitwieler/patch-28

Update limitations for Dataflow Gen2

Author: prmerger-automator[bot]

docs/data-factory/data-factory-limitations.md

@@ -68,6 +68,7 @@ The following list describes the limitations for Dataflow Gen2 in Data Factory i
 - You can't connect to a public endpoint of an Azure Storage account using Power Query Online or Dataflow Gen2 (no gateway) if the Azure Storage account already has one or more Private Endpoints created. You need to connect to such storage accounts using a VNet data gateway or an on-premises data gateway that can connect using private endpoints.
 - Dataflow Gen2 doesn't support for guest users in the tenant to connect to the data sources and destinations in the tenant the user is guest. Use a native user in the tenant to connect to the data sources and destinations.
 - Consuming data from a dataflow gen2 with the dataflow connector requires Admin, Member or Contributor permissions. Viewer permission isn't sufficient and isn't supported for consuming data from the dataflow.
+- When you do not access staging items with your dataflow for more than 90 days, you need to re-authendicate to ensure the dataflow is able to access the staging items. You can do this by creating a new dataflow gen2 within the same workspace. 
 
 The following table indicates the supported data types in specific storage locations.