The workspace name is not unique

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[Template Name goes here](Template link goes here)

### Issue Details

{
"error": {
"code": "Conflict",
"message": "The workspace name 'xxxxxx-oms' is not unique",
"target": "name"
}
}

### Repro steps (*if necessary, delete otherwise*)
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Start with the reported Azure Conflict message and identify the template that produced the workspace name; the issue does not name a template, file, test, or usable reproduction. Reproduce the deployment once those details are available, and consider the issue done only when the affected template no longer creates a non-unique workspace name.

Written by the indexing model from the issue text.