enabling a vba control form button in vba code

With ThisWorkbook.Sheets("CommissionTest")

    If .Range("A18").Value = "" Then
    
        .Buttons("CommissionMacro").Enabled = True
        
        .Buttons("CommissionUpdate").Enabled = False
        
    Else
    
        .Buttons("CommissionMacro").Enabled = False
        
        .Buttons("CommissionUpdate").Enabled = True
           
        MsgBox "The Agencies tab needs to be updated." & vbNewLine & vbNewLine & "Please select the Update Agencies tab button"
        
    End If

End With

is the equivalent of what I posted.