Our contracting with our GCs is different. Design-assist and they work off their own P6 platforms and submit weekly updates. We import into our OPC.

This worked well until we onboarded a cGMP P6 scheduler for our new more complex project who is use to integrating P6 schedules in P6 EPPM (and using IPD contracting structure where multiple stakeholders work in the same P6 environment). He finds OPC a bit awkward using Program to integrate multiple schedules. However, the solution proposed appears to work. We will tie the Mechanical Completion by System ties in the GC schedule once and send it back to them to keep updating. Then we can use that to import updates back into OPC and our integrated schedule. It will experiment with this and can report any bugs I see.