How do I create new user table in program and then access it?

I am writing an application where I check for the existence of user objects when the add on starts and run the setup if the objects do not exist. I can create the user tables and fields but after the setup completes these objects still are not visible.

If the user objects exist when the add on is first run everything is detected correctly.

When a user object is added in SAP the user is eventually prompted to restart so I suspect something needs to happen prior to the add on being able to use the new fields.

Does the add on need to wait for the DI Server to perform some action? Do I need to just quit the add on's class and rerun it, disconnect and reconnect to the company, or get a new Application and/or company object?

What I want to do is figure out a way for the add on to automatically run the configuration if the user tables and fields do not exist yet and then kick off the regular add on code. I haven't seen anyone else's code so I don't know what is recommended or required here.

Thanks for any assistance!