Disclosed are systems, methods, and non-transitory computer-readable storage media for managing content across discrete systems. A content management system can be implemented to manage content items and synchronize content items across devices. A content collaboration system can be implemented to generate documents and facilitate collaboration on documents. To take advantage of the content management system's functionality to manage and synchronize content items while also providing the collaboration functionality of the content collaboration system, the content management system can store and manage references to documents created in the content collaboration system. The document references can be managed by the content management system such that the document references appear to users as if the document references were the referenced document in the collaboration system.