An Azure Blob container can be configured for use as a Data Lake by enabling the Hierarchical Namespace option for the container. When connecting to a container that has been configured with Hierarchical Namespace, make sure to select the Use Hierarchical Namespace (Azure Data Lake Storage Gen2) option when configuring the Remote Server.

If you try to connect to an Azure Blob container that has not been enabled with the Hierarchical Namespace option, and have selected the Use Hierarchical Namespace (Azure Data Lake Storage Gen2) option then, when attempting to delete folders contained within the Azure Blob, you may see errors such as Cannot delete a directory. You may need to enable 'azure_blob_storage_hierarchical_namespace' setting on your remote server if you have the hierarchical namespace feature enabled on your azure storage account.