Development -> Preproduction -> Production Server

In theory our preferred server setup would be the title of this blog entry.  We can be a bit less robust with out development environment but the pre' and production servers should be in almost exactly the same state.  However:

What if the client hasn't bought a licence for developing with X++ and relies on their Microsoft Partner to do so.  AND what if the client the partner has is an all singing all dancing licence instead of being exactly the same as their client, plus the development modification.  One of the issues I've found was with deleting company data where we couldn't eliminate company (dataarea) related data as we no longer possessed the licence key for that part of the application.

I assume the error is caused by not possessing the licence key to part of the production module.
Applying the all singing all dancing licence finally allowed us to eliminate the company.  The proper licence was then reapplied once more.  When duplicating company data ensure that you have the 'proper' licence installed before exporting across servers!