Restore limitations for Teams chat
The following are the limitations of the Teams chat data restore:
Restore of reactions on the chats is not supported.
Restore of users' one-on-one chat is not supported.
Downloading the one-on-one chats using the Administration portal or Export Utility lets you access the one-on-one chats. The chats are downloaded in HTML format.
The Type column in the Export Jobs tab of the Export Service is displayed as for the Teams chat when restore is done using the Export service.
Replies to the deleted, edited, or reacted messages do not show which message the reply is associated with.
Example: A reply to an edited message does not specify which message it was in response to.
Scheduled meetings are not restored correctly.