Tried to cleanup workspace and semantic model could not be deleted in the end

[GudrunLiebel]

now every minute an error message is displayed 

undefined

For contact support: {
"ArtifactId": " ",
"WorkspaceId": " ",
"CapacityId": " "
}

HttpRequestWorker.requestInternal error <no-description> 500

Who can help my tenant-support or ?? 

this is for my test-account so nothing seriously happens when it is cleaned up.

[v-prasare]

Hi @GudrunLiebel,

May I ask if you have resolved this issue? If so, Can you please share the resolution steps here. This will be helpful for other community members who have similar problems to solve it faster.
If we don’t hear back, we’ll go ahead and close this thread. For any further discussions or questions, please start a new thread in the Microsoft Fabric Community Forum we’ll be happy to assist.
Thank you for being part of the Microsoft Fabric Community.

[v-prasare]

We would like to confirm if our community members answer resolves your query or if you need further help. If you still have any questions or need more support, please feel free to let us know. We are happy to help you.

Thank you for your patience and look forward to hearing from you.
Best Regards,
Prashanth Are
MS Fabric community support

[v-prasare]

@GudrunLiebel,

We would like to confirm if our community members answer resolves your query or if you need further help. If you still have any questions or need more support, please feel free to let us know. We are happy to help you.

@Rufyda ,Thanks for your prompt response

Thank you for your patience and look forward to hearing from you.
Best Regards,
Prashanth Are
MS Fabric community support

[Rufyda · Accepted solution]

Hi @GudrunLiebel 

It looks like your workspace cleanup ran into an issue where the semantic model could not be deleted, and now repeated errors are appearing. Here’s how to approach it:

Tenant Support / Admin – For this type of backend error (HttpRequestWorker.requestInternal 500), the fastest way to resolve it is usually by contacting Microsoft Fabric / Power BI support. Include the details you posted (ArtifactId, WorkspaceId, CapacityId).

Retry cleanup via portal – Sometimes deleting the semantic model or workspace through the Fabric Portal UI after a short wait can succeed, especially if it’s a test account.

Check for dependencies – Make sure the semantic model is not referenced by other datasets, reports, or pipelines, as these can block deletion.

Since it’s a test account, you can safely try deletion again or let support remove the stuck artifact.

If this helps, consider giving some Kudos. If I answered your question, please mark this as the solution.