I have a problem in audit trail with VBA

[salahianoo]

I have a workbook in read only mode and im the admin so the other users can edit in cells i decided only and when they save their changes they are saving it in new work book (system required unfortunately)
now i have to make audit trail on the basic work book
i used this code but it is not working in read only mode
please help me as u can
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Private Sub Worksheet_Change(ByVal Target As Range)
If Target.Cells.Count > 1 Then Exit Sub
Application.EnableEvents = False
Dim ov As Variant, nv As Variant
nv = Target.Value
Application.Undo
ov = Target.Value
Target = nv
With Sheets("Log")
On Error GoTo HDL:
.Cells(Rows.Count, 1).End(xlUp)(2) = Environ("UserName")
.Cells(Rows.Count, 1).End(xlUp).Offset(, 1) = Target.Parent.Name
.Cells(Rows.Count, 1).End(xlUp).Offset(, 2) = Target.Address
If ov = "" Then
.Cells(Rows.Count, 1).End(xlUp).Offset(, 3) = "Blank"
Else
.Cells(Rows.Count, 1).End(xlUp).Offset(, 3) = ov
End If
If nv = "" Then
.Cells(Rows.Count, 1).End(xlUp).Offset(, 4) = "Blank"
Else
.Cells(Rows.Count, 1).End(xlUp).Offset(, 4) = nv
End If
.Cells(Rows.Count, 1).End(xlUp).Offset(, 5) = Now
If .Columns(6).ColumnWidth < 15 Then .Columns(6).ColumnWidth = 15
End With
HDL:
If Err.Number > 0 Then
MsgBox "The following error occurred:" & Err.Number & vbLf & Err.Description & "."
End If
Application.EnableEvents = True
End Sub

 

[Joe4]

Well, if it is in read only mode, you are not going to be able to make changes to it.
Better off to use Worksheet protect and protect the sheet.
Then, have your VBA code unprotect the the worksheet at the beginning of the code, make your changes, then re-protect the worksheet at the end of the code.

See here for a simple example: Allow VBA to modify cells in protected sheet