At some point(s) all of the Subproject files will need to be integrated together, and their Handoffs will need to be connected in order to form the Master Project Schedule.
In Microsoft Project, The Subproject button in the Project ribbon is a built in tool to insert Subproject files into a consolidated, or Master Project Schedule.
The Subproject button gives users two methods of inserting one or more projects into another, "Linked" and "Unlinked". Before inserting Subprojects, it's necessary to understand the two different ways methods.
The contents of Integrating Subprojects into the Master Project
