Microsoft Graph
A Microsoft programmability model that exposes REST APIs and client libraries to access data on Microsoft 365 services.
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graph api chats property "lastUpdatedDateTime" is uncorrect
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(19.2, 16%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBB%3C/text%3E%3C/svg%3E)
Baoxin BX6 Li
6
Reputation points
i talked with user yesterday, but the property lastUpdatedDateTime is 2021-02-03T09:10:13.6Z
{count} votes
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Baoxin BX6 Li 6 Reputation points
2021-10-20T04:57:23.653+00:00 the message image
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(284.8, 81%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBM%3C/text%3E%3C/svg%3E)
Bourgon, Michael 21 Reputation points2023-03-29T22:08:33.92+00:00 There's potentially two different bugs here. But most likely, from having this myself, the problem is that "lastModifiedDateTime" for the chat isn't updated when there's a new message.
see [https://learn.microsoft.com/en-us/answers/questions/145633/need-to-show-latest-updated-date-(mm-dd)-or-time-(?comment=question#newest-question-comment](https://learn.microsoft.com/en-us/answers/questions/145633/need-to-show-latest-updated-date-(mm-dd)-or-time-(?comment=question#newest-question-comment)
and
https://learn.microsoft.com/en-us/answers/questions/559578/inconsistent-lastupdateddatetime-between-list-chat
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