Microsoft Exchange Online is rolling out new subfields 'ClientAppId' and 'APIId' under 'AppAccessContext' for better telemetry in Exchange APIs. Rollout begins early November 2024, with automatic updates and no required admin action. Post-rollout, admins should update workflows to accommodate these fields.
Applies to: Exchange Online
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).