MS Access - Error - You don't have permission to modify files in the network location

Hey,

I have a form that have two text boxes as Source and Target. The Source take the source path and the destination textbox copy the file to the destination path.An error pop up at the time of coping file which is run time error says "You don't have permission to modify files in the network location contact Administrator", i am the administrator of the server and the write permission is set to yes. When i manually copy the file it's working but when i try to copy using this VBA code it's giving this error. Although considering the file gets copied but still it's giving up this error, anyone have any idea about that?

As you can see in the image the file is copied as i have write permission. Also when i manually tried to copy its working without any error.Why is this error coming? Due to VBA or due to something else or VBA is not copying instead modifying?


Attach is VBA code if require to  look at :

Private Sub txtSource_Click()
 Dim Dialog      As FileDialog
  
    Dim Selected    As Long
    
    Set Dialog = FileDialog(msoFileDialogFilePicker)
   With Dialog
    .AllowMultiSelect = False
    .InitialFileName = Nz(Me!txtSource.Value)
        .Title = "Select file to copy"
        Selected = .Show
        If Selected <> 0 Then
            Me!txtSource.Value = .SelectedItems.Item(1)
            
        End If
    End With
    
    Cancel = True
End Sub

Private Sub txtTarget_Click()
Dim Dialog As FileDialog
    
    Dim Selected    As Long
    Set Dialog = FileDialog(msoFileDialogSaveAs)
    With Dialog
    .AllowMultiSelect = False
    .InitialFileName = Nz(Me!txtSource.Value)
        .Title = "Name saved file"
         '.InitialFileName = "N:\"
         
        Selected = .Show
        DoCmd.SetWarnings False
        
        If Selected <> 0 Then
         Me!txtTarget.Value = .SelectedItems.Item(1)
         TargetFile = .SelectedItems.Item(1)
            If Not IsNull(Me!txtSource.Value) Then
                 FileCopy Me!txtSource.Value, Me!txtTarget.Value
                 Me.txtTarget = Split(TargetFile, ":")(1)
            End If
           ' Application.FollowHyperlink Me.txtTarget
            
        End If
    End With
    
    Cancel = True
   
End Sub

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error.png