Update sql-database-managed-instance-auditing.md

Author: DavidTrigano

articles/sql-database/sql-database-managed-instance-auditing.md

@@ -12,9 +12,9 @@ f1_keywords:
 author: DavidTrigano
 ms.author: datrigan
 ms.reviewer: vanto
-ms.date: 03/27/2020
+ms.date: 05/24/2020
 ---
-# Get started with Azure SQL Database managed instance auditing
+# Azure SQL Database managed instance auditing
 
 [Managed instance](sql-database-managed-instance.md) auditing tracks database events and writes them to an audit log in your Azure storage account. Auditing also:
 
@@ -206,6 +206,9 @@ There are several methods you can use to view blob auditing logs.
 
 - For a full list of audit log consumption methods, refer to the [Get started with SQL database auditing](sql-database-auditing.md).
 
+  > [!NOTE]
+  > - If you change retention period from 0 (unlimited retention) to any other value, please note that retention will only apply to logs written after retention value was changed (logs written during the period when retention was set to unlimited are preserved, even after retention is enabled).
+
 ### Consume logs stored in Event Hub
 
 To consume audit logs data from Event Hub, you will need to set up a stream to consume events and write them to a target. For more information, see Azure Event Hubs Documentation.