Forum Discussion
eDiscovery of chat messages when Exchange is on-prem
Reading here : https://docs.microsoft.com/en-us/microsoftteams/exchange-teams-interact Looks like eDiscovery is available for channel messages when exchange is on prem (customer does not have hy...
Channel messages are stored in the Group mailbox, which is always online. Chats, either 1:1 or 1:many are stored in the "shadow" mailbox as detailed here: https://docs.microsoft.com/en-us/microsoft-365/compliance/search-cloud-based-mailboxes-for-on-premises-users?view=o365-worldwide