Which SAFe Core Competency incorporates guidance on coordinating trains and suppliers?

The Enterprise Solution Delivery competency of SAFe is specifically designed to provide guidance on how to build and evolve large, complex solutions. It includes principles and practices for coordinating and aligning multiple Agile Release Trains (ARTs) and suppliers within a value stream. This competency ensures that all parties are working towards a shared business and technology mission, using coordinated Vision, Backlogs, and Roadmaps with shared Program Increments (PIs) and synchronization points12. It is one of the seven core competencies that are essential for achieving Business Agility within the SAFe framework1.