New-ActivityAlert

The Category parameter specifies a category for the activity alert. Valid values are:

• None (This is the default value)
• DataLossPrevention
• ThreatManagement
• DataGovernance
• AccessGovernance
• Others

The Condition parameter specifies filter conditions for event aggregation.

The Confirm switch specifies whether to show or hide the confirmation prompt. How this switch affects the cmdlet depends on if the cmdlet requires confirmation before proceeding.

• Destructive cmdlets (for example, Remove-* cmdlets) have a built-in pause that forces you to acknowledge the command before proceeding. For these cmdlets, you can skip the confirmation prompt by using this exact syntax: -Confirm:$false.
• Most other cmdlets (for example, New-* and Set-* cmdlets) don't have a built-in pause. For these cmdlets, specifying the Confirm switch without a value introduces a pause that forces you acknowledge the command before proceeding.

The Description parameter specifies an optional description for the activity alert. If the value contains spaces, enclose the value in quotation marks (").

The Disabled parameter specifies whether the activity alert is enabled or disabled. Valid values are:

• $true: The activity alert is disabled.
• $false: The activity alert is enabled. This is the default value.

The EmailCulture parameter specifies the language of the notification email message.

Valid input for this parameter is a supported culture code value from the Microsoft .NET Framework CultureInfo class. For example, da-DK for Danish or ja-JP for Japanese. For more information, see CultureInfo Class.

The Multiplier parameter specifies the number of events that trigger an activity alert. The value of this parameter indicates a multiplier from a baseline value.

You can only use this parameter with the Type parameter value AnomalousAggregation.

The Name parameter specifies the unique name of the activity alert. The maximum length is 64 characters. If the value contains spaces, enclose the value in quotation marks (").

The NotifyUser parameter specifies the email addressesfor notification messages. You can specify internal and external email addresses.

You can enter multiple values separated by commas. If the values contain spaces or otherwise require quotation marks, use the following syntax: "Value1","Value2",..."ValueN".

The Operation parameter specifies the activity that triggers an activity alert.

A valid value for this parameter is an activity that's available in the Microsoft 365 audit log. For a description of these activities, see Audited activities.

You can enter multiple values separated by commas. If the values contain spaces or otherwise require quotation marks, use the following syntax: "Value1","Value2",..."ValueN".

You can't use this parameter if the Type parameter value is ElevationOfPrivilege.

The RecordType parameter specifies a record type label for the activity alert. For details about the available values, see AuditLogRecordType.

You can't use this parameter when the value of the Type parameter is ElevationOfPrivilege.

The ScopeLevel parameter specifies the scope for activity alerts that use the Type parameter values SimpleAggregation or AnomalousAggregation. Valid values are:

• SingleUser (This is the default value)
• AllUsers

The Severity parameter specifies a severity level for the activity alert. Valid values are:

• None
• Low (This is the default value)
• Medium
• High

The Threshold parameter specifies the number of events that trigger an activity alert in the time interval that's specified by the TimeWindow parameter. The minimum value for this parameter is 3.

You can only use this parameter with the Type parameter value SimpleAggregation.

The TimeWindow parameter specifies the time window in minutes that's used by the Threshold parameter.

You can only use this parameter with the Type parameter value SimpleAggregation.

The Type parameter specifies the type alert. Valid values are:

• Custom: An alert is created for the activities you specify with the Operation parameter. Typically, you don't need to use this value (if you don't use the Type parameter, and you specify the activities with the Operations parameter, the value Custom is automatically added to the Type property).
• ElevationOfPrivilege: This value is being retired.
• SimpleAggregation: An alert is created based on the activities defined by the Operation and Condition parameters, the number of activities specified by the Threshold parameter, and the time period specified by the TimeWindow parameter.
• AnomalousAggregation: An alert is created based the activities defined by the Operation and Condition parameters, and the number of activities specified by the Multiplier parameter.

Note: You can't change the Type value in an existing activity alert.

The UserId parameter specifies who you want to monitor.

• If you specify a user's email address, you'll receive an email notification when the user performs the specified activity. You can specify multiple email addresses separated by commas.
• If this parameter is blank ($null), you'll receive an email notification when any user in your organization performs the specified activity.

You can only use this parameter with the Type parameter values Custom or ElevationOfPrivilege.

The WhatIf switch doesn't work in Security & Compliance PowerShell.