Activity Explorer in Microsoft Purview will default to a 1-day time range instead of 7 days starting May 2026 to improve load performance. Users can still view up to 30 days via filters. No data retention or query capabilities change. No action is required, but inform users of the update.
Applies to: Microsoft 365 suite · Microsoft Purview
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).