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A Microsoft email and calendaring hosted service.
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There is no functionality to "lock" a chat. What he can do is remove all other persons from it.
Teams chat
![](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(265.6, 72%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERR%3C/text%3E%3C/svg%3E)
Roger Roger
5,446
Reputation points
Hi all,
One of my users has a group chat in Microsoft Teams that has existed for more than two years. The group chat has grown too large and contains a lot of data. The user does not want to close this group chat due to the important data it holds, but wants to put a restriction on this group chat so that no one can add additional comments. Is it possible to restrict the group from posting any additional comments?
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