Recorded 26 Oct 2026 at 11:39 UTC. This is what ChangeIntel recorded, including the title, summary, facts and links. It is not a statement of the source's current position. See the latest record.

Microsoft Graph changeMicrosoft Graph changelog

Teamwork and communications (v1.0): Changed lastModifiedDateTime property in the chatMessage resource to represent the time the entity was last touched. It will always be set and never have a null value

Changed lastModifiedDateTime property in the chatMessage resource to represent the time the entity was last touched. It will always be set and never have a null value

What it said

API version: v1.0
Area: Teamwork and communications
Kind: Updated
Date precision: Day
Published: 2020-09-01T00:00:00.0000000+00:00
Compatibility guidance: Not labelled
Schedule guidance: Not labelled

Recorded links

Source evidence when recorded

graph-changelog: Complete at observationRead 26 Oct 2026 at 11:37 UTC

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