Microsoft will be gradually releasing a new feature where all new files posted in Yammer groups that are Office 365 connected will be stored in SharePoint.
This message is associated with Microsoft 365 Roadmap ID: 26821.
[How does this affect me?]
With this functionality all new files posted in Office 365 connected Yammer groups will now be stored in the SharePoint account that is associated with the Office 365 Group. Keep in mind that existing files, files in unconnected groups, and files in private messages will not be impacted by this change and will continue to be stored in the legacy location.
This change will begin rolling out towards the end of December and is expected to be completed worldwide by end of March 2019.
[What do I need to do to prepare for this change?]
You don’t need to do anything to prepare for this change, but you may consider updating user training, and notifying your helpdesk.