Added note to \*-ActivityAlert cmdlets

Author: chrisda

exchange/exchange-ps/exchange/Get-ActivityAlert.md

@@ -14,7 +14,9 @@ ms.reviewer:
 ## SYNOPSIS
 This cmdlet is available only in Security & Compliance PowerShell. For more information, see [Security & Compliance PowerShell](https://learn.microsoft.com/powershell/exchange/scc-powershell).
 
-Use the Get-ActivityAlert cmdlet to view activity alerts in the Microsoft 365 Defender portal or the Microsoft Purview compliance portal. Activity alerts send you email notifications when users perform specific activities in Microsoft 365.
+**Note**: Activity alerts have been effectively replaced by alert policies and the corresponding **\*-ProtectionAlert** cmdlets. For more information about alert policies, see [Alert policies in Microsoft 365](https://learn.microsoft.com/purview/alert-policies).
+
+Use the Get-ActivityAlert cmdlet to view activity alerts. Activity alerts send email notifications when users perform specific activities in Microsoft 365.
 
 For information about the parameter sets in the Syntax section below, see [Exchange cmdlet syntax](https://learn.microsoft.com/powershell/exchange/exchange-cmdlet-syntax).
 

exchange/exchange-ps/exchange/New-ActivityAlert.md

@@ -14,7 +14,9 @@ ms.reviewer:
 ## SYNOPSIS
 This cmdlet is available only in Security & Compliance PowerShell. For more information, see [Security & Compliance PowerShell](https://learn.microsoft.com/powershell/exchange/scc-powershell).
 
-Use the New-ActivityAlert cmdlet to create activity alerts in the Microsoft 365 Defender portal or the Microsoft Purview compliance portal. Activity alerts send you email notifications when users perform specific activities in Microsoft 365.
+**Note**: Activity alerts have been effectively replaced by alert policies and the corresponding **\*-ProtectionAlert** cmdlets. For more information about alert policies, see [Alert policies in Microsoft 365](https://learn.microsoft.com/purview/alert-policies).
+
+Use the New-ActivityAlert cmdlet to create activity alerts. Activity alerts send email notifications when users perform specific activities in Microsoft 365.
 
 For information about the parameter sets in the Syntax section below, see [Exchange cmdlet syntax](https://learn.microsoft.com/powershell/exchange/exchange-cmdlet-syntax).
 

exchange/exchange-ps/exchange/Remove-ActivityAlert.md

@@ -14,7 +14,9 @@ ms.reviewer:
 ## SYNOPSIS
 This cmdlet is available only in Security & Compliance PowerShell. For more information, see [Security & Compliance PowerShell](https://learn.microsoft.com/powershell/exchange/scc-powershell).
 
-Use the Remove-ActivityAlert cmdlet to remove activity alerts from the Microsoft 365 Defender portal or the Microsoft Purview compliance portal.
+**Note**: Activity alerts have been effectively replaced by alert policies and the corresponding **\*-ProtectionAlert** cmdlets. For more information about alert policies, see [Alert policies in Microsoft 365](https://learn.microsoft.com/purview/alert-policies).
+
+Use the Remove-ActivityAlert cmdlet to remove activity alerts.
 
 For information about the parameter sets in the Syntax section below, see [Exchange cmdlet syntax](https://learn.microsoft.com/powershell/exchange/exchange-cmdlet-syntax).
 

exchange/exchange-ps/exchange/Set-ActivityAlert.md

@@ -14,7 +14,9 @@ ms.reviewer:
 ## SYNOPSIS
 This cmdlet is available only in Security & Compliance PowerShell. For more information, see [Security & Compliance PowerShell](https://learn.microsoft.com/powershell/exchange/scc-powershell).
 
-Use the Set-ActivityAlert cmdlet to modify activity alerts in the Microsoft 365 Defender portal or the Microsoft Purview compliance portal.
+**Note**: Activity alerts have been effectively replaced by alert policies and the corresponding **\*-ProtectionAlert** cmdlets. For more information about alert policies, see [Alert policies in Microsoft 365](https://learn.microsoft.com/purview/alert-policies).
+
+Use the Set-ActivityAlert cmdlet to modify activity alerts.
 
 For information about the parameter sets in the Syntax section below, see [Exchange cmdlet syntax](https://learn.microsoft.com/powershell/exchange/exchange-cmdlet-syntax).