REPORTED DEVELOPMENT
Changelog: 22 October; technical documentation: 15 October.
Graph getMicrosoft365CopilotUsageUserDetailByDate reports individual-user Copilot activity for a specified day. Technical documentation was updated on 15 October and included in the October changelog updated on 22 October, rather than launched on 25 October.
Queryable dates run from seven days before the latest reportRefreshDate through that date inclusive: eight calendar dates tied to report refresh, not request day. Reports.Read.All supports delegated and application permissions. The API is Graph /beta, unsupported for production use. Metrics cover actions, requests and application activity, not financial costs, measured saved hours or AI-attributable returns.
WHY IT MATTERS TO THE MARKET
User-day activity adds measurement detail while remaining distinct from technical consumption, monetary costs and business outcomes.