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ADF dataflow data Preview Error
hi All, I have data flow as seen below. all linked service and data set working fine and i can see the data preview but wheb i use the same linked service and dateset in the dataflow It throw e...
I assume you're getting this error because ADF Data Flow preview runs on a separate debug cluster, which doesn’t use your private endpoint.
To fix it:
- Assign IAM role Storage Blob Data Reader to the ADF Managed Identity at the container level.
- If using ADLS Gen2, grant ACLs: Execute on parent folders and Read on the file(s).
- Ensure the storage firewall allows access from "Trusted Microsoft services" or configure VNet + private endpoint for data flow debug.
https://learn.microsoft.com/en-us/azure/data-factory/tutorial-data-flow-private