# Azure - Access key for the Azure Blob Storage account

For Snowflake on Azure, Structural uses an Azure storage account to load and unload data to and from Azure Blob Storage. You provide the storage account name in the workspace configuration.

You provide the access key for the storage account as the value of the [environment setting](https://docs.tonic.ai/app/admin/environment-variables-setting) `TONIC_AZURE_BLOB_STORAGE_ACCOUNT_KEY`.

You can obtain the access key from the storage account portal under **Access keys**. Structural uses this key to authorize API calls when it unloads and loads data to and from Azure Blob Storage.


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