updates for clarity.

Author: julieMSFT

articles/sql-database/sql-database-vnet-service-endpoint-rule-overview.md

@@ -130,10 +130,10 @@ PolyBase is commonly used to load data into Azure Synapse Analytics from Azure S
    > - If you have a general-purpose v1 or blob storage account, you must **first upgrade to v2** using this [guide](https://docs.microsoft.com/azure/storage/common/storage-account-upgrade).
    > - For known issues with Azure Data Lake Storage Gen2, please refer to this [guide](https://docs.microsoft.com/azure/storage/data-lake-storage/known-issues).
     
-1. Under your storage account, navigate to **Access Control (IAM)**, and click **Add role assignment**. Assign **Storage Blob Data Contributor** RBAC role to your Azure SQL Server (logical server of your Azure Synapse Analytics data warehouse) which you've registered with Azure Active Directory (AAD) as in step#1.
+1. Under your storage account, navigate to **Access Control (IAM)**, and click **Add role assignment**. Select the  **Storage Blob Data Contributor** RBAC role from the drop down. For **Assign access to** select **Azure AD user, group, or service principal**. For **Select** type the server name of your Azure SQL Server (logical server of your Azure Synapse Analytics data warehouse) which you've registered with Azure Active Directory (AAD) as in step #1. Use only the server name not the fully qualified DNS name (<servername>.database.windows.net)
 
    > [!NOTE]
-   > Only members with Owner privilege can perform this step. For various built-in roles for Azure resources, refer to this [guide](https://docs.microsoft.com/azure/role-based-access-control/built-in-roles).
+   > Only members with Owner privilege  on the storage account can perform this step. For various built-in roles for Azure resources, refer to this [guide](https://docs.microsoft.com/azure/role-based-access-control/built-in-roles).
   
 1. **Polybase connectivity to the Azure Storage account:**