Globally unique resources that provide access to data management services and serve as the parent namespace for the services.
Hello @ MichaelB-2136
Thank you for reaching out to Microsoft Q&A.
As discussed, if the storage account was associated with Azure Site Recovery (ASR), the deletion would be blocked. In such cases, the storage account must first be unregistered from ASR before retrying the deletion.
In your case, I can now see that the storage account has been automatically deleted now.
Reference:
https://learn.microsoft.com/en-us/azure/backup/manage-afs-backup#unregister-a-storage-account
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