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Newly installed 365 -- Outlook and Teams not syncing

MM 20 Reputation points
2026-02-16T11:03:02.25+00:00

I have tried the following:

  • confirmed both Outlook and Teams are logged into same account
  • logging into and out of Teams multiple times
  • uninstalled and reinstalled Teams
  • confirmed the Teams Add-In is showing in Outlook (for some reason I can only find it in Classic Outlook, so moved back to Classic)
  • however, the Add-in file location shown below cannot be found -- when I navigate to Users then to my first name...there is no folder named AppData in this location.

User's image

Help?

UPDATED NOTE:

I tried also going through Outlook in the browser. Then I was prompted to set up a new email address with outlook.com. When I set up 365, I used my gmail. Now in I try to login to my account, I'm being told I need to use my work or school login. Whhhatttt???

Microsoft 365 and Office | Install, redeem, activate | For home | Windows
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Answer accepted by question author
  1. EmilyS726 214.8K Reputation points Independent Advisor
    2026-02-16T13:50:37.5766667+00:00

    Hello,

    Teams add-in in Outlook only works for accounts with business tier license, not on personal account.

    Also, if you are using a third-party email address as your Microsoft account alias/username, this will cause calendar sync issue. Your calendar feature technically is still with Google, not Microsoft. Teams doesn't have integration feature on Teams personal to sync your Google Calendar into Teams. When you send out an invitation from Teams calendar, it will be using a placeholder outlook.com address to send it, and it can show up in your outlook and Teams calendar, but not your Google's. However, when you receive an invitation and accept, it will only show up in your Google calendar.

    To address this issue, you will need to give your Microsoft a proper outlook.com alias. And have users send invitation to this outlook.com address instead.

    Go to https://account.live.com

    Go to Your Info > Sign in preference, Add an alias.

    Create new: this will allow you to use the native domain outlook.com to create a new alias.


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