Onshape provides multiple tools for collaborating with other Onshape users, as well as people outside of the Onshape process but still very much a part of your process.

To learn more about sharing documents and collaborating in Onshape, you can follow the self-paced course here: Sharing and Collaboration (Onshape account required). You can also follow the technical briefing here: Sharing with New Onshape Users (Onshape account required).