I posted before about how to bulk load JSON or CSV file from Blob storage to Azure SQL Database, for that case the storage account was public, that means the storage account was enabled from all networks, you can check or change that setting from Storage Account then Networking, like

Bulk load from JSON or CSV files from Azure SQL Blob to Azure SQL Database is a common scenario, I want to show you how you can import data from Azure SQL Blob. Step1 -Create Master Key If that’s first time you need to create Master Key, As Microsoft