To help you tell a deeper Copilot adoption story—not just who is active, but how they’re using Copilot—the Copilot usage metrics API now classifies each engaged user into an AI adoption phase based on their Copilot product usage over a rolling 28-day window. A new ai_adoption_phase field is available on user-level reports, and a new totals_by_ai_adoption_phase array surfaces per-phase metrics on enterprise- and organization-level reports.
What’s new
Each engaged user is assigned to one of four phases based on the Copilot surfaces they’ve used on at least two days in the last 28-day window:
Phase 0 — No cohort: User did not meet the engagement criteria for any phase.
Phase 1 — Code first: User engaged with code completion and/or IDE agent mode.
