As mentioned in the introduction, users created through the process documented above don’t have rights to execute work with the setup.pl database administration tool. Note that this is on purpose. You will need access to the server to create such users, or request one from your application service provider (ASP) if you use a hosted solution.
During the set up process such a user is normally being created. This user can later be used to manage the database from the database administration tool setup.pl.