Keep your chat list organized and focused by deleting entire chat threads in Teams. One-one-one chats, group chats, and meeting chats can all be deleted from your chat list. Todelete individual messages from a chat thread, seeEdit or delete a sent message in Teams.
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From Chaton the left side of Teams, go to the chat you want to delete and select More options > Delete Chat.
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Select Delete.
See AlsoWatchDogWhat Is Cached Data, and Should You Keep It or Clear It?Warning: Microsoft Teams Free (classic) retires in 2 monthsUpdate Microsoft Teams - Microsoft SupportOnce you've selectedDelete, the chat will be permanently removed from your chat list and conversation history will be deleted. When this happens, you won't be able to search for messages that were part of the deleted chat thread.
Note:If you are a meeting owner, you cannot delete the meeting chat. However, if you are a participant in the meeting chat, youcandelete it.
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When a one-on-one, group, or meetingchat thread isn't needed and you want to clear it from your chat list, delete itfrom your mobile device.Todelete individual messages from a chat thread, seeEdit or delete a sent message in Teams.
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From the Chattab, go to the chatand long press on it. Tap More Options > Delete.
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Tap Delete.
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Confirm your choice by selectingDelete.
Once the chat is deleted, it willbe removed from the chat list on your mobile deviceand will no longer be searchable.