How to convert a shared mailbox into a full account in the new Outlook

In the new version of Outlook, you can convert a shared mailbox into a full account to access advanced features such as notifications, rules, and automatic replies: 

1. Check your Outlook version 
   Make sure you are using the installed version of Outlook (New) and signed in with your professional Microsoft account. This option is only available in this version: Download here. 

2. Access settings 
   Click the settings icon (⚙️) in the top right corner, then select Accounts. 

3. Go to "Shared with me" 
   In the accounts menu, click Shared with me. 

4. Select the shared mailbox 
   Find the shared mailbox you want to convert. It will be indicated by: 

   "This shared account was automatically added by your IT administrator." 

5. Convert to a full account 
   Click Convert. The mailbox will then be added as a full account in Outlook.