Merge pull request #105182 from DeeptiJainMicrosoft/patch-1

Update calculate-blob-count-size.md

Author: Court72

articles/storage/blobs/calculate-blob-count-size.md

@@ -22,6 +22,9 @@ The first step in this method is to [enable inventory reports](blob-inventory.md
 
 When you have an inventory report to analyze, grant yourself read access to the container where the report CSV file resides by assigning yourself the **Storage Blob Data Reader** role. Be sure to use the email address of the account you're using to run the report. To learn how to assign an Azure role to a user with Azure role-based access control (Azure RBAC), follow the instructions provided in [Assign Azure roles using the Azure portal](../../role-based-access-control/role-assignments-portal.md).
 
+> [!NOTE]
+> To calculate the blob size from the inventory report, make sure to include the **Content-Length** schema field in your rule definition.
+
 ## Create an Azure Synapse workspace
 
 Next, [create an Azure Synapse workspace](../../synapse-analytics/get-started-create-workspace.md) where you will execute a SQL query to report the inventory results.