Since Office 365 is supposed to be device independent, it would be great if Visio/Visio Pro would have a mac version that is available through Office 365.

The proofing language for Word Online etc. is set to English US by default, and whilst you can change this on a single document, it automatically defaults back to English US for every new document created.

I've spoken to Microsoft, who confirmed this is by design, and cannot currently be changed at a global/admin level.

In our existing Word and PowerPoint apps, we were able to post shared, branded templates for use across the organization. This is no longer available when using Office Online. Please enable more choice so that users, when creating a new document, can select from blank or from designated, designed templates.

In Google docs etc, you can add a comment (just like office 365) but you can @mention. We use it a lot for collaboration and we are trying to migrate to Office 365. This missing feature, while not a show stopper, is causing some groups real pain.

When creating a task, notifications should go only to the owner and assignee by default. You can change it to:

Entire group
Assignee only
Assignee & Owner

Enable filters for the Recycle Bin view which allow selection of date range and user. This would greatly help in recovery of large amounts of inadvertently deleted data which a particular user has done (such as by "cleaning up" local folders which were actually synced.

Enterprise environments commonly use outbound proxies that require the outbound traffic to provide authentication credentials. When an application generates the traffic, the application needs to be able to response to the proxy request for credentials. Today, the sync client does not respond to request for credentials and the outbound traffic is blocked.

It is not possible to add a user to a empty teamchannel, so the channel is lost if you delete the owner. Why its not possible as ADMIN to setup a new owner? Without this possibility datalost is incoming....

Allow tracking of whether the members of your team have viewed a message that you have posted in Teams, similar to Facebook Messenger/WhatsApp.

Currently, OneDrive for business can be automated to a point where adminstrators can launch OneDrive Setup but the user still has to key in their email address to set it up. This makes it harder to ensure folder redirection for every user works. If we could allow the first time setup to be automated, Orgaisations can ask users to restart their workstation once to confirm folder redirection will take place.

Enable use of Visio and Project with 365 and Office 2016. Office 2016 deletes Project and Visio even though we've paid for the software. There is no easy way to roll back either. This should be a no brainer.

1 central location for your corporate templates such as Word, PowerPoint, Excel etc. These templates can/may be maintained by a department like MarCom (Marketing and Communications).

When you are in an Office Group for example and click [New] at your library, you should have an option "Corporate". This option then should give you 'Which Corporate Template would you like to use?' giving the templates that MarCom provided.

We as an organisation think Microsoft Streams could be used as a training ground for our staff on office 365 applications, we would like to have the ability to add YouTube videos that we approve as good training material. There is some great training material on YouTube to be able to highlight the good ones in Microsoft Steams would be fantastic.

When you open a template (.dotx, .xltx, .potx) stored in Sharepoint library, it doesn't open a new document based on the the template like it does on a file share, but opens the template itself.
Please make it work like on file share, and open new document.

Using several Microsoft services (Outlook, OneNote, Planner, Project, Dynamics CRM ++).. Tasks are a huge mess. One creates tasks here, there and everywhere but what is severely lacking is ONE unified view/application to aggregate all the tasks you have created no matter which (Microsoft) service you have created them in. No "Add to Outook", the task is just there. Please bring this feature to f.ex Wunderlist. Also add possibility to add several user identities into the aggregated view.

I would love to be able to assign only one person edit permissions to a document, while giving a larger audience, the ability to view and add comments.

I find the "Tag for Status Change Alerts" feature in Skype for Business to be very useful. I mainly use this to get an alert when someone becomes available so I can pounce on them quickly! Can this be added to Teams?

OneDrive for Business on Linux
No OneDrive for Business on Linux aka Dropbox exists. This is a showstopper for many.