The Dynamic Data Masking Server node contains a Log Level property that the Dynamic Data Masking administrator can set to Information, Warning, or Error. The log level in the Dynamic Data Masking Server node corresponds to the Send As property of the Log Message security rule action. If the Send As property is an equal or greater severity than the Log Level property, the logger logs the event. If the Send As property is a lower severity than the Log Level property, the logger does not log the event.

For example, you have the Log Level property of the Dynamic Data Masking Server set to Warning. You have three security rules that use the Log Message rule action. The Send As property of Rule_1 is set to Information. Rule_2 has the property set to Warning, and Rule_3 has the property set to Error. The loggers will create logs for Rule_2 and Rule_3, but not for Rule_1.

The following table describes the log levels:

Log Level	Description
Information	Provides information about the normal behavior of the Dynamic Data Masking Server. Information logs can include information about when a service starts or stops and when a user logs in or if the log in fails.
Warning	Provides information that you can use to find and analyze non-fatal abnormal states in the Dynamic Data Masking Server. Warning logs can include information about a Dynamic Data Masking service start or stop failure, or an error that occurs when you add a node in the Management Console tree.
Error	Provides only error messages. Use the Error log level in production because it provides the best Dynamic Data Masking performance.