> For the complete documentation index, see [llms.txt](https://help.boomerang3.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.boomerang3.com/boomerang-3-domain-administrator-manual/dashboard/object_view/detailed-object-view/activity-log-tab.md).
# Activity log tab
Activity log contains a list of selected measuring points events.
The Activity log tab displays a red x mark if there are any active alarm or warning in the current view scope. This red mark is present in the example above.
The events are alarms, warnings, communication errors and other events like e.g., measuring point configuration changes.
The log record contains the event date and time, measuring point name, event type, description, alarm limit name, signing persons’ details and comments.
The icon in the 'Event Type' column represents the type of event like alarm, warning, communication error etc.
For alarm and warning events click the icon to see the event handling information like the one below.
The log can be filtered by Event Type as shown below.
The alarms can be active or inactive (signed) as described in chapter [Alarms and warnings handling](/boomerang-3-domain-administrator-manual/dashboard/alarms_and_warnings.md).
Use ‘All / Active Alarms’ switch to show all event types or only active alarms.
Use a checkbox in the leftmost column of an active alarm to select it or a checkbox on top of the leftmost column to select all the active alarms at once.
Click ‘Sign Alarm’ to sign selected active alarm(s) as described in the [Sign](/boomerang-3-domain-administrator-manual/common_elements/sign.md) chapter.
The signed alarms become inactive and are visible on the list with a signing user name and time of signing.
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