Teams is a potentially great collaboration tool marred by the confusion way in which files are attached or handled. Having a Files tab is great for each channel, but it should be much easier to integrate OneDrive, SharePoint and the native files component together seamlessly, and also to make sure that uploading files into Teams onto a SP folder works properly. Today you have to go into native SharePoint to actually upload a file - you can't do it (despite the UX implying you can) natively in Teams.

Right now you can not sync SPO folders between diferent companies, if you have to share and edit files often with other companies this could be a problem. You should be able to sync folders between different companies if you want to.

I use outlook and To-Do on my Mac. When a task's due date is arriving, I receive notification from both, Outlook and To-Do. an option to disable outlook's notification will be very welcome

View permissions do not work the way I would expect. I want users to be able to see a document folder and list the items in the folder - but not to view the actual documents themselves!

Admin need to Retain the ability to not delete OneDrive Businesss file when sharing with employees.

https://sergeluca.wordpress.com/2014/06/15/sharepoint-2013-sharepoint-online-bug-in-per-location-view-settings/

There are two One Note instances, when you are an Office 365 Client: the client you download with Office 365 and another client provided for by Windows 2016. They are not compatible with each other and also have a total different look.

We had issue when a user accepts a recurring Calendar entry that does not have a valid end date, calendar invites were sent from his account to participants of the meeting repeatedly in 1 minute intervals, flooding the mailbox of all participants in the meeting. We logged a call and was told by support that this is a known issue when a recurring calendar does not have a valid END date. Please Fix this. Thank you!

Adding a contact to a group contact list used to be so easy. All you had to do was go to a contact , and click add to group contact list and they were then in that group.
Now you can't do that. It is so hard to load them, plus you can't look up a contact and see what group they are in. Please go back to the old way!

At the top of each file office lists the file name, then " saved to this PC" I'd like to see date and time of last save.

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Sling Contact Number 1-877-852-0777 is an immediate dial phone number that will interface you straightforwardly to a client benefit delegate holding up to accept your call.

http://www.siegetitanwars.com/forum/community/general/1621-dial-us18778520777-if-sling-tv-not-working

Just like you can within the teams app, it would be really great if, from a E1 licenced compuiter, the Office Hub could open documents/app within itself ant not open in the browser.

We are going from $18.20 per user per month to $28.90 per user per month. We are a not for profit on a fixed budget, and find this increase absolutely outrageous. Furthermore, we are having to renew with fewer options. This is unacceptable. We are going to have to consider a different option for next year as we cannot sustain this kind of increase, without a proper explanation, from year to year. Product is good, but not good enough to justify this type of increase. Shame on you!

Outlook reminders has buttons to dismiss a single selected reminder or dismiss all reminders. If none of reminders are selected, "Dismiss all" button is greyed out. Why on earth do I need to select one of reminders to be able to dismiss them all? Makes absolutely no sense.

Like so: https://imgur.com/a/VFFJI0Z