Two years ago, AI SDRs flooded the market and failed for a simple reason: no context. Generic automation at scale felt like spam, and many teams burned credibility fast. In 2026, the advantage is not necessarily “more AI,” it is better inputs. Signals turn growth into relevant timing and a real reason to act across channels, including email, in-app experiences, and ABM. This session lays out a practical signal system: what signals matter, how to instrument them, how to translate them into decision rules, and how to route them into the right motion with measurable experiments and clear governance.