Assign Calendar Privileges with Powershell

Question

Im trying to assign Calendar Permissions to Owner and Member, Owner should have read&write while members only read.

This is the code i came up with. the error i got was the following:

Specified method is not supported.

Status: 400 (BadRequest)

ErrorCode: ErrorNotSupported

Thank you for your help.

$groupId`` = "your-group-id"

$calendarId`` = "calendar"

$owners`` = Get-MgGroupOwner -GroupId $groupId

$members`` = Get-MgGroupMember -GroupId $groupId

foreach`` ($owner in $owners) {

$ownerId`` = $owner.Id

New-MgUserCalendarPermission`` -UserId $ownerId -CalendarId $calendarId -Role "write"

}

foreach`` ($member in $members) {

$memberId`` = $member.Id

New-MgUserCalendarPermission`` -UserId $memberId -CalendarId $calendarId -Role "read"

}

$groupId
$calendarId
$owners
$members
foreach
$ownerId
New-MgUserCalendarPermission
}
foreach
$memberId
New-MgUserCalendarPermission
}