Im getting an invalid use of property error on the line where I try to assign the formatted table name to tables. I'm assuming this is a syntactical issue. However, I'm not sure what I want to do is possible without more code or different code. I want to grab the tablename of the activesheet so that in the next line it can be added in the range to create formatted table syntax(i.e. MyTable[EntityID])
Option Explicit
Private Sub Workbook_Open()
Dim ws As Worksheet
Dim wbkCurBook As Workbook
Dim searchValue As String
Dim searchSheet As String
Dim tableMatch As Range
Dim cell As Range
Dim combined As String
Dim x As Long
Dim LastColumn As Long
Dim tables As ListObject
Application.ScreenUpdating = False
Set wbkCurBook = ActiveWorkbook
'highlight all entityIDs with missing definitions
    For x = 3 To Sheets.Count
        Sheets(x).Activate
        ws = ActiveSheet
        tables = Sheets(x).ListObjects
                For Each cell In Sheets(x).Range(tables & "[EntityID]")
                    searchValue = cell.Value
                    searchSheet = Sheets(x).Name
                    combined = searchSheet & " " & searchValue
                    
                    With wbkCurBook.Sheets("Data Dictionary").Range("Dictionary[CombinedName]")
                            Set tableMatch = .Find(What:=combined, _
                                            After:=.Cells(.Cells.Count), _
                                            LookIn:=xlValues, _
                                            LookAt:=xlWhole, _
                                            SearchOrder:=xlByRows, _
                                            SearchDirection:=xlNext, _
                                            MatchCase:=False)
                        If tableMatch Is Nothing Then
                                cell.Interior.Color = RGB(255, 0, 0)
                        End If
                    End With
                Next cell
    Next x
    
    Application.ScreenUpdating = True
        
 End Sub
 
     
    