Can't delete orphaned lakehouse SQL analytics endopoint and semantic model

Hi dzav,

1. Use Power BI REST API or PowerShell to delete the orphaned artifacts

There’s no delete button in Fabric UI, but you can use the REST API to delete these semantic models manually:

Power BI REST API: Delete Dataset

DELETE https://api.powerbi.com/v1.0/myorg/groups/{workspaceId}/datasets/{datasetId}

You’ll need:

• Workspace ID (target workspace)
• Dataset ID (of the orphaned semantic model)

You can get these from:

• Power BI Admin Portal
• Workspace URL (the GUID)
• Dataset list from the REST API or even the browser's dev tools

If you're not comfortable with REST calls, I can help you write a quick PowerShell script using Invoke-RestMethod.

1. Rename the orphaned artifact (via REST API)

Renaming could help release the name lock so you can redeploy the original Lakehouse.

PATCH https://api.powerbi.com/v1.0/myorg/groups/{workspaceId}/datasets/{datasetId}

Content-Type: application/json

{

  "name": "Orphaned_Dataset_Backup"

}

Permissions Needed

You must have:

Admin or Member access to the workspace

Fabric admin permissions if using Admin APIs

Either Power BI Admin role or permission to register applications for API use

Hi dzav 
Could you please navigate to the workspace settings and you can delete orphaned semantic models. 
Your issue will get resolved.

If the above information is helpful, please give us Kudos and mark the response as Accepted as solution.
Best Regards,
Community Support Team _ C Srikanth.