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v1.0AddedCalendars | Work hours and locations · September 2026

Calendars | Work hours and locations: added

What Microsoft changed

Month-dated announcement

Added app-only support to the workHoursAndLocationsSetting , workPlanOccurrence , and workPlanRecurrence resources and related methods. Apps can use the Calendars.Read.All application permission to read a user's setting, recurrences, and occurrences, and Calendars.ReadWrite.All to create, update, and delete them.

API documentation

Source: Microsoft Graph monthly changes. Collection coverage. The publisher supplies a month, not an exact announcement day.

What changed

First observed 19 Oct 2026

No field changes in the recorded history.

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ChangeIntel

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Sources read 19 Oct 19:25 UTC · 258 of 260 readable · 256 fully read · documentation 417/444 current