With the recent time change for Daylight Savings Time, I am reminded that it is time to run some scripts that will update the time stamps for alerts.
Problem: When alerts are set for a list or library, they can be scheduled to be sent immediately or as a daily or weekly summary sent at a specific day and time. When the time changes, the time in the alert is not updated.
Solution: It is necessary to turn the alert off, then back on again. This resets the internal time for the alert.
Process: First you need to find all of your alerts. The location of your alerts can be verified by using the following PowerShell script, which outputs all of the alerts created on the farm:
$credential = Get-Credential -Credential domain\name
$session = New-PSSession -cn [name] -Credential $credential -Authentication Credssp
function get-allalerts(){
[void][System.Reflection.Assembly]::LoadWithPartialName(“Microsoft.SharePoint”)
$farm = [Microsoft.SharePoint.Administration.SPFarm]::Local
foreach ($spService in $farm.Services) {
if (!($spService -is [Microsoft.SharePoint.Administration.SPWebService])) {
continue;
}
foreach ($webApp in $spService.WebApplications) {
#exclude Central Admin app
if ($webApp -is [Microsoft.SharePoint.Administration.SPAdministrationWebApplication]) { continue }
#exclude MySite
if ($webApp -contains “MySite” ) { break }
foreach ($site in $webApp.Sites) {
foreach ($web in $site.AllWebs) {
foreach ($user in $web.SiteUsers)
{
foreach($alert in $user.Alerts)
{
$lstitemurl = “”
if($alert.AlertType -eq “Item”)
{
$list = $alert.List
$lstitem = $alert.Item
$lstitemtitle = $lstitem.Title
}
$data = @{
“WebURL” = $web.URL
“User” = $user.LoginName
“Alerttitle” = $alert.Title
“AlertFrequency” = $alert.AlertFrequency
“AlertType” = $alert.AlertType
“AlertList” = $list.Title
“AlertitemTitle” = $lstitemtitle
}
New-Object PSObject -Property $data
}
}
}
}
}
}
}
get-allalerts | Export-Csv -NoTypeInformation -Path “d:\temp\allalerts.csv”
Once the correct location is determined, run the following PowerShell script found here, which turns off the alerts, then turns them back on, which resets the time.
Don’t forget to set a reminder for yourself to do this every time the time changes.
