This article explains the steps on how to change Log Level for Alerts on NSM
The steps to be followed is mentioned below:
Step 1: Log into the NSM management page via MSW account|Available services|Capture Security Centre or type cloud.sonicwall.com on the browser window.
Step 2: Navigate to Manager View and select Logs & Alerts> Settings on the NSM management page

Step 3: Navigate Log and select Log Level from the drop down list. Here, in the example the log level has changed from Info to Warning. Click on Save

