What causes Fabric Pipeline Error 2501?

Incorrect or expired Azure Batch account access key in the linked service. Wrong or non-existent Batch pool name specified in the activity settings. Batch account linked service was updated without re-publishing the pipeline. Batch account was regenerated or rotated without updating the pipeline connection

How do I fix Fabric Pipeline Error 2501?

Step 1: Navigate to the Azure Portal and open your Azure Batch account, then go to Keys to retrieve the current primary or secondary access key.. Step 2: In Microsoft Fabric Data Factory, locate the linked service for your Azure Batch account and update the access key with the value retrieved in Step 1.. Step 3: Confirm the pool name in your pipeline activity matches an existing, active pool in your Azure Batch account under Pools in the Azure Portal.. Step 4: Test the linked service connection in Fabric to confirm credentials are accepted before re-running the pipeline.. Step 5: Re-publish the pipeline after any linked service changes and trigger a new pipeline run to verify the error is resolved.

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Power BI Refresh Error:
Fabric Pipeline Error 2501

What does this error mean?

The pipeline cannot access the Azure Batch account due to incorrect credentials or pool configuration. Verify the Batch access key and pool name in your linked service connection.

Common causes

1Incorrect or expired Azure Batch account access key in the linked service
2Wrong or non-existent Batch pool name specified in the activity settings
3Batch account linked service was updated without re-publishing the pipeline
4Batch account was regenerated or rotated without updating the pipeline connection

How to fix it

1Step 1: Navigate to the Azure Portal and open your Azure Batch account, then go to Keys to retrieve the current primary or secondary access key.
2Step 2: In Microsoft Fabric Data Factory, locate the linked service for your Azure Batch account and update the access key with the value retrieved in Step 1.
3Step 3: Confirm the pool name in your pipeline activity matches an existing, active pool in your Azure Batch account under Pools in the Azure Portal.
4Step 4: Test the linked service connection in Fabric to confirm credentials are accepted before re-running the pipeline.
5Step 5: Re-publish the pipeline after any linked service changes and trigger a new pipeline run to verify the error is resolved.

Frequently asked questions

Can I use Azure Key Vault to manage the Batch access key so it rotates automatically?

Yes, configure your Fabric linked service to reference an Azure Key Vault secret for the Batch access key. This way, when the key is rotated in Key Vault, the pipeline always retrieves the latest value without manual updates.

What if the pool name is correct but the error still occurs?

Double-check that the Batch pool is in an active state (not being deleted or in an error state) and that the account key has not been regenerated since the linked service was last saved. Re-enter and re-test the linked service credentials.