Protect worksheet without stopping a macro from running?

[wrecclesham]

I have a worksheet that I wish to enable protection on.

Unfortunately, whenever the worksheet is in a protected state and I update any values in any unlocked cells which the macro automatically applies sorting to, the following error appears:

Even if no cells have a "locked" attribute when I protect my worksheet, I still get this error whenever my macro attempts to automatically sort any dates entered, so it seems that enabling protection simply blocks some macro code from running, regardless of which cells are actually locked.

I've done some research and it seems that I need to use the following code in order to only lock the user interface, without preventing macros from running:

Me.Protect UserInterfaceOnly := True

Can someone please show me how I should add it to my existing code?

I have tried inserting the following before my existing code but it made no difference:

Public Sub AllowMacros()

Me.Protect UserInterfaceOnly:=True

End Sub

Here is my existing code:

Private Sub Worksheet_Change(ByVal Target As Range)

Application.EnableEvents = False
 With Range("A1:A11")
      .Offset(, 4).Formula = "=IF(ISTEXT(D1),1,if(d1="""",9999999,D1))"
      .Resize(, 5).Sort key1:=Range("e1"), order1:=xlAscending, Header:=xlYes
      .Offset(, 4).Clear
   End With
Application.EnableEvents = True
    Range("A13:D18").Sort key1:=Range("D1"), _
      order1:=xlAscending, Header:=xlYes, _
      OrderCustom:=1, MatchCase:=False, _
      Orientation:=xlTopToBottom
    
    Range("A20:C30").Sort key1:=Range("A1"), _
      order1:=xlAscending, Header:=xlYes, _
      OrderCustom:=1, MatchCase:=False, _
      Orientation:=xlTopToBottom
    
End Sub

 

[pwill]

If you right click the worksheet and choose protect sheet, in the dialog box that pops up, there's an option to Allow Sort. That might help?

 

[wrecclesham]

I've allowed everything.

 

[wrecclesham]

Does anyone have any ideas?