SAM is expecting 2 lines to come back, one a message (optional), and another a statistic. Your output doesn't match the format that SAM is after. I'd do the following:
$path = 'c:\temp'
$stats = 0
$msg = ''
$days = 3
$hours = 10
$mins = 5
$files = @(Get-ChildItem -Recurse -Path $path -Include '*.*' | ?{ $_.LastWriteTime -lt (Get-Date).AddDays(-$days).AddHours(-$hours).AddMinutes(-$minutes) -and $_.psIsContainer -eq $false})
if ($files -ne $null) {
$f_names = [System.String]::Join('|',$files) $msg = 'Message: ' + $f_names $stats = $files.Count
} else { $msg = 'Message: 0 files exceed defined age'
}
Write-Host $msg
Write-Host "Statistics: $stats"
WIth this, it'll output the file names in the Message, and the file count that exceeds the age will be a statistic, and you can monitor/alert based on that value. One thing to be careful of is the length that the message will get, depending on the number of files in the path.