diff --git a/VBA/VBA-Code_By_Modules/AssignEmployeeMain.bas b/VBA/VBA-Code_By_Modules/AssignEmployeeMain.bas
new file mode 100644
index 0000000..50f68c9
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+++ b/VBA/VBA-Code_By_Modules/AssignEmployeeMain.bas
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+Attribute VB_Name = "AssignEmployeeMain"
+' Global variable
+Public last_row_roster As Long
+Public wsRoster As Worksheet
+Public wsSettings As Worksheet
+
+' Declare roster column numbers
+Public Const VAC_COL As Long = 1
+Public Const DATE_COL As Long = 2
+Public Const DAY_COL As Long = 3
+Public Const LMB_COL As Long = 4
+Public Const MOR_COL As Long = 6
+Public Const AFT_COL As Long = 8
+Public Const AOH_COL As Long = 10
+Public Const SAT_AOH_COL1 As Long = 12
+Public Const SAT_AOH_COL2 As Long = 14
+Public Const START_ROW As Long = 6
+
+Sub Main()
+Attribute Main.VB_ProcData.VB_Invoke_Func = "M\n14"
+    Set wsRoster = Sheets("Roster")
+    Set wsSettings = Sheets("Settings")
+    
+    Dim dateRow As Long
+    Dim currDate As Date
+    Dim slotCol As Variant
+    Dim slotCell As Range
+    Dim enteredPassword As String
+    Const password As String = "rostering2025"
+    
+    enteredPassword = InputBox("Please enter the password for roster population:", "Password Authentication")
+    If enteredPassword <> password Then
+        MsgBox "Incorrect password. Fail to populate roster.", vbCritical
+        Exit Sub
+    End If
+    
+    'Find last row of roster
+    If wsRoster.Cells(2, 10).Value = "Jan-Jun" And wsRoster.Cells(2, 13).Value Mod 4 = 0 Then
+        last_row_roster = 187
+    ElseIf wsRoster.Cells(2, 10).Value = "Jan-Jun" Then
+        last_row_roster = 186
+    Else
+        last_row_roster = 189
+    End If
+    
+    
+    ' Define your table and corresponding sheet names
+    sheetNames = Array("Loan Mail Box PersonnelList", "Morning PersonnelList", _
+                       "Afternoon PersonnelList", "AOH PersonnelList", "Sat AOH PersonnelList")
+    tblNames = Array("LoanMailBoxMainList", "MorningMainList", "AfternoonMainList", _
+                     "AOHMainList", "SatAOHMainList")
+                     
+    ' Ask for confirmation before clearing
+    If MsgBox("This action will clear the current roster table. Are you sure you want to proceed?", vbYesNo + vbQuestion, "Confirm Clear") = vbNo Then
+        Exit Sub ' Exit Main if user selects No
+    End If
+    
+    wsRoster.Unprotect
+        
+    ' Clear table content
+    wsRoster.Range("D6:O189").ClearContents
+    wsRoster.Range("D6:O189").Rows.AutoFit
+    
+    
+    ' Loop through all specified sheets and unprotect the sheets
+    For i = 0 To UBound(sheetNames)
+        On Error Resume Next ' Enable error handling
+        Set ws = ThisWorkbook.Sheets(sheetNames(i))
+        If Not ws Is Nothing Then
+            Debug.Print "Attempting to unprotect sheet: " & sheetNames(i) & " at " & Now
+            ws.Unprotect
+            If Err.Number = 0 Then
+                Debug.Print "Successfully unprotected sheet: " & sheetNames(i) & ws.ProtectContents
+            Else
+                Debug.Print "Failed to unprotect sheet: " & sheetNames(i) & " - Error: " & Err.Description
+                Err.Clear
+            End If
+        Else
+            Debug.Print "Sheet not found: " & sheetNames(i)
+        End If
+        On Error GoTo 0 ' Disable error handling
+    Next i
+       
+    ' Loop through each date row
+    For dateRow = START_ROW To last_row_roster
+        currDate = wsRoster.Cells(dateRow, DATE_COL).Value
+        ' Reset formatting for all slots
+        For Each slotCol In Array(LMB_COL, MOR_COL, AFT_COL, AOH_COL, SAT_AOH_COL1, SAT_AOH_COL2)
+            Set slotCell = wsRoster.Cells(dateRow, slotCol)
+            slotCell.Interior.ColorIndex = xlNone ' Reset to no fill (default)
+            slotCell.Font.Strikethrough = False
+        Next slotCol
+        
+        'Check for Closed date
+        If IsClosedDate(currDate) Then
+            Call MarkAllSlotsClosed(dateRow)
+        End If
+        
+    Next dateRow
+    
+    Call ResetAllCounters.ResetAllCounters
+    
+    Call AssignSatAOHDuties.AssignSatAOHDuties
+    Call AssignAOHDuties.AssignAOHDuties
+    Call AssignAfternoonDuties.AssignAfternoonDuties
+    Call AssignMorningDuties.AssignMorningDuties
+    Call AssignLoanMailBoxDuties.AssignLoanMailBoxDuties
+    
+    Call DuplicateSystemRoster.DuplicateSystemRoster
+    
+    ' Reprotect the worksheet and lock table ranges
+    For i = 0 To UBound(sheetNames)
+        Set ws = ThisWorkbook.Sheets(sheetNames(i))
+        Set tbl = ws.ListObjects(tblNames(i))
+        
+
+        With ws
+            If Not tbl Is Nothing Then
+                .ListObjects(tbl.Name).Range.Locked = True
+            End If
+            .Range("D5:D9").Locked = False ' keep data entry remains unlocked
+            .Protect DrawingObjects:=True, Contents:=True, Scenarios:=True, _
+                     AllowFiltering:=True, AllowSorting:=True, AllowUsingPivotTables:=True
+        End With
+    
+    Next i
+    
+    ' Reprotect the Roster sheet with specified properties
+    'With wsRoster
+    '    .Protect DrawingObjects:=True, Contents:=True, Scenarios:=False, _
+    '             AllowFormattingCells:=True, AllowFormattingColumns:=True, _
+    '             AllowFormattingRows:=True
+    'End With
+
+End Sub
+
+Private Function IsClosedDate(currDate As Date) As Boolean
+    IsClosedDate = (Weekday(currDate, vbMonday) = 7) Or _
+        Application.WorksheetFunction.CountIf(wsSettings.Range("Settings_Holidays"), currDate) > 0
+End Function
+
+Private Sub MarkAllSlotsClosed(dateRow As Long)
+    Dim col As Variant
+    For Each col In Array(LMB_COL, MOR_COL, AFT_COL, AOH_COL, SAT_AOH_COL1, SAT_AOH_COL2)
+        With wsRoster.Cells(dateRow, col)
+            .Value = "CLOSED"
+            .Interior.Color = vbRed
+        End With
+    Next col
+End Sub
+