Last Year:
Centralized Engineering in Epicor with Parts, Revisions, ECOGroups being managed at Global Company. Then Local Companies who have the Part Linked get Synced and there are options to manually Pull Revisions down (Sync Down).
It was a long year long effort to hash out bugs and honor PartPlant settings among other things.
If a ECO Group had Parents or Children (Materials, Phantoms, Sub Assemblies etc) it would also bring them down, with the Revisions, Link them among other things… Multi-Level.
It was used on Fire Truck BOMs which are huge. It handled the beating. 
Combination of BPMs, UI, Service Connect.