SharePoint – Get all alerts from a specific SP List/Library using Powershell

Hey Everyone!!!

Today i will talk about List and Library Alerts and how can you get all Active alerts for a specific list using powershell script and how can you disable all alerts.

This is very useful script, when you need move a large list of items on a maintenance routine and you don’t want send a large number of emails/ notifications for users who subscribe alerts, this script help you disable and enable them.

This first PowerShell Script get all SharePoint list alerts with state active.

 

Add-PSSnapin Microsoft.SharePoint.PowerShell –ErrorAction SilentlyContinue

#Variables
$WebURL = "http://YourWebUrl"
$ListName="YourListName"

#Function to Get All Active Alerts on a Given List
Function Get-ListAlerts($WebURL, $ListName)
{
  #Get the Web and List objects
  $Web = Get-SPWeb $WebURL
  $List = $web.Lists.TryGetList($ListName)

  #Get All Alerts created in the list - Which are Active
  $ListAlerts = $Web.Alerts | Where-Object {($_.List.Title -eq $List.Title) -and ($_.Status -eq "ON")}

  foreach($Alert in $ListAlerts)
  {
          write-host "Alert' - $($Alert.Title)' Created for User - '$($Alert.User.Name)'"
  }

 #Dispose web object
 $Web.Dispose()
}

#Call the function Appropriately to Disable or Enable Alerts 
Disable-ListAlerts $WebURL $ListName

 

If you want disable all alerts on this specific list you just need run the following script.

 

Add-PSSnapin Microsoft.SharePoint.PowerShell –ErrorAction SilentlyContinue

#Variables
$WebURL = "http://YourWebUrl"
$ListName="YourListName"

#Function to Disable All Active Alerts on a Given List
Function Disable-ListAlerts($WebURL, $ListName)
{
  #Get the Web and List objects
  $Web = Get-SPWeb $WebURL
  $List = $web.Lists.TryGetList($ListName)

  #Get All Alerts created in the list - Which are Active
  $ListAlerts = $Web.Alerts | Where-Object {($_.List.Title -eq $List.Title) -and ($_.Status -eq "ON")}

  Write-host "Total Number of Active Alerts Found in the list: $($ListAlerts.Count)" 
 
  #Iterate through each alert and turn it OFF
  foreach($Alert in $ListAlerts)
  {
     $Alert.Status="OFF"
     $Alert.Update()
     write-host "Disabled the Alert' $($Alert.Title)' Created for User '$($Alert.User.Name)'"
  }
 
 #Dispose web object
 $Web.Dispose()
}

#Call the function Appropriately to Disable or Enable Alerts 
Disable-ListAlerts $WebURL $ListName

Thanks

Fábio Carvalho
SharePoint Consultant
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