Handle duplicate entries - ACTV status takes priority over INAC/LEFT

Update-StaffAD.ps1

@@ -1,6 +1,7 @@
 # Update-StaffAD.ps1
 # Reads Staff_Extract.csv and updates AD email addresses and account status.
 # Matches users by sAMAccountName (PAYROLL_REC_NO column).
+# If duplicate entries exist, ACTV takes priority over INAC/LEFT.
 # Applies changes automatically and appends results to a log file.
 
 # --- Configuration ---
@@ -29,6 +30,18 @@ function Write-Log {
     Add-Content -Path $LogFile -Value $Message
 }
 
+# --- Deduplicate: ACTV wins over INAC/LEFT ---
+$Deduped = @{}
+foreach ($entry in $Staff) {
+    $key = $entry.PAYROLL_REC_NO.Trim()
+    if (-not $Deduped.ContainsKey($key)) {
+        $Deduped[$key] = $entry
+    } elseif ($entry.STAFF_STATUS.Trim() -eq "ACTV") {
+        # ACTV always overrides whatever was stored
+        $Deduped[$key] = $entry
+    }
+}
+
 # --- Run Header ---
 Write-Log ""
 Write-Log $RunHeader
@@ -40,7 +53,7 @@ $disables     = 0
 $noChanges    = 0
 $notFound     = 0
 
-foreach ($entry in $Staff) {
+foreach ($entry in $Deduped.Values) {
     $samAccount = $entry.PAYROLL_REC_NO.Trim()
     $status     = $entry.STAFF_STATUS.Trim()
     $email      = $entry.E_MAIL.Trim()