Hi @VigneshJaisanka 

The issue likely comes from a permissions or configuration mismatch. Here are a few things worth checking:

• Make sure the SPN is set as the pipeline owner and has the necessary permissions on the ADLS resource.
• If you’re using Unity Catalog, double-check that the SPN has the right privileges (like SELECT) on the relevant catalog, schema, and external tables.
• Confirm that the SPN credentials are correctly set in both the cluster settings and the pipeline settings
• Enabling driver logs might also help pinpoint exactly where the permission is failing.