@SY_MSO Welcome to Microsoft Q&A Forum, Thank you for posting your query here!
If you have connected the Azure Blob Storage container using below mentioned option(Blob SAS URL) then you will <Storage account>(SAS) . You need to Detach the container. You won't get delete option here, since you have connected the blob container using SAS. If they regenerate the SAS URL you cannot connect/attach back, previous SAS URL/token would be expired.
Additional information: If you create a New folder in Azure Blob Storage account->Container This will create a virtual folder. A virtual folder does not actually exist in Azure until you paste, drag or upload blobs into it. To paste a blob into a virtual folder, copy the blob before creating the folder.
Please let us know if you have any further queries. I’m happy to assist you further.
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