How to get outlook recurring meeting items in powershell - powershell

Question

I am using below script to pull outlook calendar items and it works for events that occur once. It fails for recurring meeting invites as the start date on it would be when the invite was sent and not the occurrence start time. Also, i dont see any variable referencing the occurrence end date, so cant dynamically lookup for the occurrence. Any suggestions on how to get that?
Function Get-OutlookCalendar {
Add-type -assembly “Microsoft.Office.Interop.Outlook” | out-null
$olFolders = “Microsoft.Office.Interop.Outlook.OlDefaultFolders” -as [type]
$outlook = new-object -comobject outlook.application
$namespace = $outlook.GetNameSpace(“MAPI”)
$folder = $namespace.getDefaultFolder($olFolders::olFolderCalendar)
$folder.items |
Select-Object -Property start,RequiredAttendees, Subject, IsRecurring, Organizer,ConversationID,RecurrenceState,OptionalAttendees,Body
}
$start_date=(Get-date).AddDays(-2) |Get-Date -Format 'MM/dd/yyyy'
$end_date=Get-Date -Format 'MM/dd/yyyy'
Get-OutlookCalendar| where-object { $_.start -gt [datetime]$start_date -and $_.start -le [datetime]$end_date } | sort-object start

Answer 1

You can try below switch:
switch ($item.IsRecurring)
{
$false {
if ($item.start -ge $dt -and $item.start -lt ($dt).AddDays(1))
{
$item | Select-Object -Property Subject, Start, Duration, Location, RequiredAttendees
}
}
$true {
try {
$rec=$item.GetRecurrencePattern()
$recitem=$rec.GetOccurrence($dt.ToString("yyyy-MM-dd") + " " + $item.Start.ToString("HH:mm"))
$recitem | Select-Object -Property Subject, Start, Duration, Location, RequiredAttendees, IsRecurring
}
catch {}
finally {}
}
}