Should this change go in an Update Set or a Scoped Application? The answer shapes how your work moves through dev, test, and prod — and getting it wrong leads to missing artifacts, orphaned config, and post-deployment surprises that are hard to undo. This session cuts through the confusion with a clear mental model and practical decision criteria you can use immediately. We'll cover why these tools operate at different layers rather than as alternatives, which artifacts behave differently between them (including the deletion propagation gap that catches even experienced admins off guard), and how Build Agent changes the equation — what it outputs by default, where global scope fits in, and why the layered model still governs how everything ships even when AI is doing the building. Best for: Platform Architects and Platform Admins responsible for how changes move through their ServiceNow environments.