In the new UI, I (as a group owner) am unable to remove members from a group or remove ownership status. I have to switch to the old UI to do that.

The new Outlook has lost the "approval" button within in the moderator email. The email comes asking for approval but no button to approve.

In the old Outlook I was able to click the "files" tab and documents sent in that group would show up. I am not able to do this with the new version of outlook.

i cant attach documents from my shared group folders any more under the new outlook

Not able to see groups in the new outlook. Where do I check the group emails?

It would be great if we could delete items in the O365 group mailbox at once by using item retention policy, or if items can be automatically deleted when the O365 group mailbox capacity is almost full. If the mailbox no longer has enough item capacity, we need to manually delete items or recreate the Office 365 group which is time consuming for us.

Give access to groups and so Sharepoint from Outlook 365 with NEW look.

In my Inbox, I can see Groups, but the icons are identical folders. Most of my groups have unique images for the icons, which makes finding the groups much easier.

I love the new format of the email but the one thing I would love Outlook to jump on board with is having a setting that keeps all unread messages clustered together as permanent if someone selects that as a filtering option. As soon as a
message is read, then the user has to go back and filter all the messages to unread.

Being able to add contacts to a Group is essential for me

It seems that under the more options (three dots) the "Copy link to this conversation" is missing OWA

What happened to the + next to groups header to create groups?

?

With new Outlook, when you click 'groups', then '##members', you can no longer see the online status of the rest of the group - please fix!

can't change if the group is private or not private

New Files tab for Office 365 Groups are displayed files that stored library. But Old Files tab are displayed attachment files of emails.

List of attachment files are one of most important features for Office 365 Groups.

Could you back to old files tab?

Someone posted something into a group chat on conversations and I was unable to delete it, the message disappeared for a moment but after a refresh it was back. Changed back to old version and it was no longer visible, switched back again to the new version and the message was still there. If the message is deleted in the old version however it disappears in both. Can this be rectified?