@Rajat Kumar - Thanks for the question and using MS Q&A platform.
I understand that you are facing an issue while creating a new Purview instance in your Azure tenant. The error message you received indicates that you already have a tenant-level Microsoft Purview account named "test-purvew-01" in your tenant.
Kindly check if the existing Purview instance is still available in your tenant. If it is, you can try to access it and see if it meets your requirements. If you have removed the Purview instance, you can check if it is still available in the Azure portal.
To resolve this issue, you need to wait for few minutes and retry to create MS Purview account with same name.
As per the repro, I had created MS Purview account and then deleted and after few minutes I was able to create a MS Purview account with same name without any issue.
In case, if you experiencing the same issue, I would suggest you to share the above screenshot as shown above.
For more details, refer to Quickstart: Create an account in the Microsoft Purview governance portal.
Hope this helps. Do let us know if you any further queries.
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