"We couldn't complete that action" when creating a new Team

We've tried a few accounts with mixed results. Funnily enough I just did a fresh install with the user and the issue still persists. Turns out they can create a new Team on their phone app though! After doing some more digging, it appears Microsoft is aware of the issue (though there doesn't seem to be a fix yet):

This notification was submitted on June 4th, so I'm shocked it still appears to be prevalent, but at least they are aware of the issue.

Unfortunately, I had cleared both their Beta and legacy Teams cache prior to making this post. I am an IT admin, so I made sure before posting that they had that ability. It doesn't seem to be affecting anyone else (at least that I had test it), just this user. Looks like I'll have them report it to Microsoft. Oddly enough, they can create one in the old Teams version, but not the beta. Bummer they couldn't iron out the many kinks in beta before forcing us to switch to it, but it is what it is. I appreciate your reply Furkaan.

I just signed off my account en closed teams, sign in again en it was working again.. You can give that a try?

Hi,

We had this issue also in our company.

All of our users suffers from this.

This is the solution that helped us to fix it:

1. Closing Teams App
2. Removing the local teams folder (replace the user name)- C:\Users\username\AppData\Local\Packages\NcsiUwpApp_8wekyb3d8bbwe
3. start Teams app

In order to fix this on all our users, we created a PowerShell script.

Now we can create a new Team.

Shelly

Several users in my company are also experiencing the same issue with the new Microsoft Teams as of the past few days. I know that the post indicates it isn't client-specific but, when I switched to classic (can't anymore now), I am able to create a team as expected. Additionally, creating a team via the app on iPad/iPhone works as well. However, switching back to the new Microsoft Teams causes the issue to return.