There are quite a few error messages you can get when setting up Dynamics NAV security – database is invalid or cannot be access, you do not have permissions to read the table, etc, etc. And once you have seen them, next time you will know (more or less) possible solution for it. And I thought I have seen all of them by now. However, today, I’ve seen one more error, which I have seen before, but the cause of it was different!