When dRofus exchanges data with Revit Project Parameters (as configured in the Active Configuration) it will allocate data using the name of the Project Parameter only. If the Project Parameter does not exist in Revit then it will be automatically created as a Shared Project Parameter and populated by dRofus.
Note that Shared Parameters that are automatically written by dRofus to a Shared Parameter text file will be placed into one of two Shared Parameter Groups. The exact names of these Groups is important for dRofus to be able to locate Shared Project Parameters:
"drofus instance parameters"
"drofus type parameters"
The concept of Shared Parameters in Revit means they are defined via an external Shared Parameter File which allocates each Shared Parameter a unique Global Unique ID. This Global ID ensures that Shared Parameters across several Projects can be coordinated and Unique.
For larger groups of Users working together on the same project, it is very important to understand the implications of this.
It is highly recommended that one Project Administrator User takes control of the Shared Parameters File, creates and correctly names the applicable Parameters in advance, and shares this file as a read-only file with other Users working on the same Project.