Can't delete Azure Analysis Server or Power Bi Workspace

Question

Can't delete Azure Analysis Server or Power Bi Workspace

Rob Sewell 0

I cannot delete an unused empty Azure Analysis Server because "it is being redirected to Power Bi"

I have an empty Power Bi workspace that I cannot delete because AASMigration_ActiveMigrationExists

So I am a bit stuck.

How do I get rid of both of these resources?

Abhisek Mishra 1,020 Reputation points Microsoft External Staff Moderator

2025-10-23T12:01:38.7566667+00:00
Hi Rob Sewell,

Welcome to the Microsoft Q&A and thank you for posting your questions here.

The error occurs because your Azure Analysis Services (AAS) instance is linked to Power BI through migration. When 'AASMigration_ActiveMigrationExists' is present, it means the migration process hasn’t been fully completed or cleaned up, so both resources are locked.

You can try the following to resolve this circular dependency caused by unfinished migration.

Verify Migration Status

Go to the Power BI Admin Portal / Capacity settings / Check if the workspace is associated with an AAS migration.

If migration is still active, you’ll need to complete or cancel it before deletion.

Cancel Active Migration

In Power BI, navigate to the workspace settings and look for Analysis Services migration options.

Cancel the migration if it’s incomplete. This will remove the lock on both resources.

Remove Dependencies

Ensure no datasets or reports in Power BI are using the AAS model.

Delete any linked semantic models or connections.

Delete Resources

Once migration is canceled and dependencies are cleared:

Delete the Power BI workspace from the Admin Portal.

Delete the Azure Analysis Services server from the Azure Portal.

I hope this information is helpful! If you still have questions, please let us know what is needed in the comments so the question can be answered.

Thanks,

Abhisek
Rob Sewell 86 Reputation points MVP

2025-10-23T15:14:56.24+00:00

Where can this be seen? I can neither find this in my settings or in any documentation

Go to the Power BI Admin Portal / Capacity settings / Check if the workspace is associated with an AAS migration.

Where can this be seen? I can neither find this in my settings or in any documentation

In Power BI, navigate to the workspace settings and look for Analysis Services migration options.

Ensure no datasets or reports in Power BI are using the AAS model.

Delete any linked semantic models or connections.

The workspace is empty
Swapnesh Panchal 1,370 Reputation points Microsoft External Staff Moderator

2025-10-24T20:09:56.6366667+00:00

Hi Rob Sewell, Just checking in — were you able to remove the migration flag or delete the Analysis Services server and Power BI workspace after following the steps? If the issue still persists, could you please share what you see in the Power BI Admin Portal (migration status or any specific error message)? That will help us identify if a backend cleanup is needed.
Rob Sewell 0 Reputation points

2025-10-25T10:25:14.64+00:00

Where can this be seen? I can neither find this in my settings or in any documentation

Go to the Power BI Admin Portal / Capacity settings / Check if the workspace is associated with an AAS migration.

Where can this be seen? I can neither find this in my settings or in any documentation

In Power BI, navigate to the workspace settings and look for Analysis Services migration options.

Ensure no datasets or reports in Power BI are using the AAS model.

Delete any linked semantic models or connections.

The workspace is empty
Abhisek Mishra 1,020 Reputation points Microsoft External Staff Moderator

2025-10-31T14:10:39.1266667+00:00

Hi Rob Sewell,

I hope you had a chance to review the information shared earlier, and I hope this information has been helpful! If you still have questions, please let us know what is needed in the comments so the question can be answered.

1 answer

Your answer

Abhisek Mishra 1,020 Reputation points Microsoft External Staff Moderator

2025-10-23T12:01:38.7566667+00:00

Hi Rob Sewell,

Welcome to the Microsoft Q&A and thank you for posting your questions here.

The error occurs because your Azure Analysis Services (AAS) instance is linked to Power BI through migration. When 'AASMigration_ActiveMigrationExists' is present, it means the migration process hasn’t been fully completed or cleaned up, so both resources are locked.

You can try the following to resolve this circular dependency caused by unfinished migration.

Verify Migration Status

Go to the Power BI Admin Portal / Capacity settings / Check if the workspace is associated with an AAS migration.

If migration is still active, you’ll need to complete or cancel it before deletion.

Cancel Active Migration

In Power BI, navigate to the workspace settings and look for Analysis Services migration options.

Cancel the migration if it’s incomplete. This will remove the lock on both resources.

Remove Dependencies

Ensure no datasets or reports in Power BI are using the AAS model.

Delete any linked semantic models or connections.

Delete Resources

Once migration is canceled and dependencies are cleared:

Delete the Power BI workspace from the Admin Portal.

Delete the Azure Analysis Services server from the Azure Portal.

I hope this information is helpful! If you still have questions, please let us know what is needed in the comments so the question can be answered.

Thanks,

Abhisek
Rob Sewell 86 Reputation points MVP

2025-10-23T15:14:56.24+00:00

Where can this be seen? I can neither find this in my settings or in any documentation

Go to the Power BI Admin Portal / Capacity settings / Check if the workspace is associated with an AAS migration.

Where can this be seen? I can neither find this in my settings or in any documentation

In Power BI, navigate to the workspace settings and look for Analysis Services migration options.

Ensure no datasets or reports in Power BI are using the AAS model.

Delete any linked semantic models or connections.

The workspace is empty
Swapnesh Panchal 1,370 Reputation points Microsoft External Staff Moderator

2025-10-24T20:09:56.6366667+00:00

Hi Rob Sewell, Just checking in — were you able to remove the migration flag or delete the Analysis Services server and Power BI workspace after following the steps? If the issue still persists, could you please share what you see in the Power BI Admin Portal (migration status or any specific error message)? That will help us identify if a backend cleanup is needed.
Rob Sewell 0 Reputation points

2025-10-25T10:25:14.64+00:00

Where can this be seen? I can neither find this in my settings or in any documentation

Go to the Power BI Admin Portal / Capacity settings / Check if the workspace is associated with an AAS migration.

Where can this be seen? I can neither find this in my settings or in any documentation

In Power BI, navigate to the workspace settings and look for Analysis Services migration options.

Ensure no datasets or reports in Power BI are using the AAS model.

Delete any linked semantic models or connections.

The workspace is empty
Abhisek Mishra 1,020 Reputation points Microsoft External Staff Moderator

2025-10-31T14:10:39.1266667+00:00

Hi Rob Sewell,

I hope you had a chance to review the information shared earlier, and I hope this information has been helpful! If you still have questions, please let us know what is needed in the comments so the question can be answered.

Answer 1

Hi Rob Sewell,

Check from the Power BI Admin side (even if the workspace looks empty) Some associations (capacity, pipelines, hidden bindings) live in admin views and can block deletion.

Admin Portal → Workspaces: open the specific workspace and review: Capacity assignment (reassign if needed). Deployment pipelines: if the workspace is connected to a pipeline, remove that link first.
If nothing shows in the UI Use Power BI Admin APIs to list and clear hidden bindings. https://learn.microsoft.com/rest/api/power-bi/
Delete the workspace programmatically Power BI doesn’t have a direct Remove-PowerBIWorkspace cmdlet, so use REST
https://stackoverflow.com/questions/76090783/how-to-remove-a-workspace-in-powershell
Delete the AAS server After the workspace is gone, delete the AAS server in Azure Portal.

The migration linkage often surfaces as a state that blocks delete (the AASMigration_ActiveMigrationExists flag) rather than a prominent workspace toggle. In practice, clearing pipelines/capacity/dataset bindings is what resolves it; once cleared, the workspace and then the AAS server can be deleted.

I hope this information is helpful! If you still have questions or you come across issues, please let us know what is needed in the comments so this question can be answered.

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Can't delete Azure Analysis Server or Power Bi Workspace

1 answer

Your answer