Team Tab Showing Persistent Notification

Question

On Saturday, it seems that one of my colleagues had posted a message with the @(team name), which forced a notification to show beside the team itself as seen in the attached photo:

However, the user, which I'm uncertain as to who did as there are numerous people who post in here and I'm unable to identify who had posted something and deleted it, had deleted their message before I was able to view it. Now, I have a persistent notification that there's a mention for myself or my team and I'm unable to have it be cleared.

How may I clear this as I'm not seeing a way to do so? Also to note, I'm not an admin of the channel, so I have limited access for its permissions. 

Thanks in advance!

Answer 1

Dear Bryant,
My name is Renzo, as an Independent Advisor and Office user, I'll help you with your question.

You can perform following process;

1. To avoid any other account credentials in cache, in any internet browser remove all browser cache and navigation history from "All time" select all options to clean, then go to:
   https://teams.microsoft.com/
2. Access with your Office 365 account, then verify if you can access through Teams "web-client", then check out if appear the message notification there, if not, perform below process in the local client on Windows 10.
3. • Close Microsoft Teams (Check out if appears in Windows toolbar and close it).

• Copy and paste following path Windows File Explorer:
  %appdata%\Microsoft\Teams
• Delete all content in that folder
• Open Teams and access with your personal account, then check out app behavior if still appears the notification.

Any doubt, let me know and have a nice day.