Hello there,
Use the Set-MailboxCalendarConfiguration cmdlet to modify mailbox calendar settings for Outlook on the web. This affects how the user's calendar looks and how reminders work in Outlook on the web.
$ol = New-Object -ComObject Outlook.Application
$meeting = $ol.CreateItem('olAppointmentItem')
$meeting.Subject = 'Test # 4'
$meeting.Body = 'Let''s have a meeting'
$meeting.Location = 'Virtual'
$meeting.ReminderSet = $true
$meeting.Importance = 1
$meeting.MeetingStatus = [Microsoft.Office.Interop.Outlook.OlMeetingStatus]::olMeeting
$meeting.Recipients.Add('******@contoso.net')
$meeting.Recipients.Add('******@contoso.net')
$meeting.ReminderMinutesBeforeStart = 15
$meeting.Start = [datetime]::Today.Adddays(1)
$meeting.Duration = 30
$meeting.Send()
Hope this resolves your Query !!
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