MetricSign
EN|NLRequest Access
Medium severitydata source

Power BI Refresh Error:
UserErrorSourceBlobNotExist

What does this error mean?

The blob file or container specified as the source does not exist in the storage account. The path resolved to a non-existent location.

Common causes

  • 1The file was deleted, moved, or not yet created when the pipeline ran
  • 2A dynamic path expression resolved to a path that does not exist in storage
  • 3The container name or blob path in the dataset configuration is incorrect

How to fix it

  1. 1Verify the container name and blob path in the dataset configuration.
  2. 2If using dynamic expressions, log the resolved path and confirm it exists in the storage account.
  3. 3Check if the file was deleted by another process before the pipeline ran.
  4. 4Enable the fault tolerance option "skip missing files" if the file may legitimately not exist for some runs.

Frequently asked questions

Does this error affect all pipeline runs or just the current one?

Depends on the root cause. A persistent misconfiguration fails every run; a transient issue may resolve on retry. Check the run history.

Can this error appear in Azure Data Factory and Microsoft Fabric pipelines?

Yes — the same connector errors appear in both ADF and Fabric Data Factory pipelines.

How do I see the full error detail for an ADF pipeline failure?

In ADF Monitor, click the failed run, then the failed activity. The detail pane shows the error code, message, and sub-error codes.

Will downstream Power BI datasets be affected when an ADF pipeline fails?

Yes — a dataset refreshing after the pipeline will use stale data or fail if the target table was cleared. The Power BI refresh may succeed while serving wrong data.

Official documentation: https://learn.microsoft.com/en-us/azure/data-factory/copy-activity-fault-tolerance

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