Update - fixed it using OR as described in another post!

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Hi all!

I’ve made some changes to Phil's code ( https://www.myonlinetraininghub.com/select-multiple-items-from-drop-down-data-validation-list) to allow for multiple drop down lists to be used, each in a different column. I can easily add a second range, however when I try to add any more ranges I get a 450 error. Any help you can provide would be appreciated!

Option Explicit

Private Sub Worksheet_Change(ByVal Target As Range)

Dim OldVal As String
Dim NewVal As String

' If more than 1 cell is being changed
If Target.Count > 1 Then Exit Sub
If Target.Value = "" Then Exit Sub

If Not Intersect(Target, ActiveSheet.Range("Range_Sectors_v1", "Range_Locations_v1")) Is Nothing Then

' Turn off events so our changes don't trigger this event again
Application.EnableEvents = False

NewVal = Target.Value

' If there's nothing to undo this will cause an error
On Error Resume Next
Application.Undo
On Error GoTo 0

OldVal = Target.Value

' If selection is already in the cell we want to remove it
If InStr(OldVal, NewVal) Then

'If there's a comma in the cell, there's more than one word in the cell
If InStr(OldVal, ",") Then

If InStr(OldVal, ", " & NewVal) Then

Target.Value = Replace(OldVal, ", " & NewVal, "")

Else

Target.Value = Replace(OldVal, NewVal & ", ", "")

End If

Else

' If we get to here the selection was the only thing in the cell
Target.Value = ""

End If

Else

If OldVal = "" Then

Target.Value = NewVal

Else

' Delete cell contents
If NewVal = "" Then

Target.Value = ""

Else

' This IF prevents the same value appearing in the cell multiple times
' If you are happy to have the same value multiple times remove this IF
If InStr(Target.Value, NewVal) = 0 Then

Target.Value = OldVal & ", " & NewVal

End If

End If

End If

End If

Application.EnableEvents = True

Else

Exit Sub

End If

End Sub