I'm trying run the following to configure discovery in ConfigMgr 2012 R2, but get an error with the schedule.  What am I doing wrong?  If I use a 7 day cycle instead of trying the -DayOfWeek options, everything works. I want discovery to run every Sunday at 4:00 AM.

Cannot bind argument to parameter 'PollingSchedule', because PSTypeNames of the argument do not match the PSTypeName required by the parameter: IResultObject#SMS_ST_RecurInterval

$Site = Get-CMSite
$Sched = New-CMSchedule -Start "01/01/2015 04:00 AM" `
  -DayOfWeek Sunday
  -RecurCount 1

# Enable and Configure Active Directory System Discovery
Set-CMDiscoveryMethod -ActiveDirectorySystemDiscovery `
   -SiteCode $Site.SiteCode `
   -Enabled $True `
   -PollingSchedule $Sched `
   -EnableDeltaDiscovery $True `
   -DeltaDiscoveryIntervalMinutes 5 `
   -EnableFilteringExpiredLogon $True `
   -TimeSinceLastLogonDays 90 `
   -EnableFilteringExpiredPassword $true `
   -TimeSinceLastPasswordUpdateDays 90

• Edited by jsc.19 1 hour 3 minutes ago