Possible to restrict WI creation to only 1 instance?

The only way I can think of achieving that would be to have a custom process precondition on the "save work item" operation, that checks to see if the work item being created is of the singleton type, and if so verify that no other work items of that type already exist in the repository. (I'd need someone else to give you guidance on the API calls you'd need to make to implement that precondition).

Is it possible to have singletons in RTC? I would need to have a WI type, but allow to create only 1 instance of this type...
--Claudia

Thanks Geoff!