Although Outlook has done a great job managing our emails and storing our contacts, it’s not a good app to organize our work and meetings or keep track of our progress.
We have much better apps for that, like the Teams app from Microsoft themselves.
So, if you’ve established all your meetings on Outlook and are trying to transfer them to Teams, I’ve got you covered.
This article will explain how to convert Outlook meetings to Teams meetings, and we’ll further explore the error Sorry, you need to sign out of Teams and sign in again before you can schedule your meeting when converting to Teams and fix it for good.
Check out our separate post on how to Add Teams Meeting in Outlook.
How to Convert Outlook Meetings to Teams Meetings?
Transferring the Outlook meetings to Teams is super simple and only takes a few minutes. You can use the Developer option, but I’ve also described other ways if you don’t have the Developer tab.
Here’s how to change Outlook meetings to Teams meetings:
Using the Developer tab
- Launch Outlook on your desktop.
- Go to the Developer tab.
- Select COM Add-Ins.
- Make sure Microsoft Teams Meeting Add-in is checked.
- Navigate to the Calendar tab.
- Double click on the meeting you want to transfer.
- Select Teams Meeting from the toolbar and Join Teams Meeting.
If you don’t have the Developer tab on your Outlook interface, follow the steps below.
Also, check out our separate post on how to fix Microsoft Teams you can’t send messages error.
Without the Developer Tab
- Launch Outlook.
- Go to File > Options > Add-ins.
- Select COM Add-ins and click Go.
- Make sure Microsoft Teams Meeting Add-in is checked and press OK.
- Move to the Calendar tab.
- Double click on the meeting you want to transfer.
- Choose Teams Meeting from the toolbar.
Quickly check out our epic guide on Microsoft Teams set out of office alerts.
Using the Web Browser
- Open Outlook on your browser.
- Select Edit and the 3 dots (More Options).
- Turn on Teams meeting.
- Click Save to update the changes.
With these steps, the meeting will be converted.
In case you don’t have the Microsoft Teams Meeting Add-in, just go through the following steps.
Follow our guide to fixing Teams not working on WiFi.
Adding Teams Add-in to Outlook
- Open Microsoft Teams.
- Click the 3 horizontal dots beside your profile and select Settings.
- Move to the General tab.
- Check Register Teams as the chat app for Office.
- Restart Teams.
- Restart the Outlook app on the desktop.
And you should be able to see the Teams add-in in the COM Add-Ins list of Outlook.
Fix Error While Converting Outlook Meetings to Teams
Switching Outlook meetings to Teams meetings is mostly a smooth transition, but sometimes, you’ll get the pop-up that says, Sorry, you need to sign out of Teams and sign in again before you can schedule your meeting. 
But signing out and signing in does nothing, and we get the same pop-up again.
However, the error is pretty easy to fix. Just go through the solutions below, and the problem will be solved.
Here’s how to fix Sorry, you need to sign out of Teams and sign in again:
1. Clear Device cache Files
Corrupted cache files can cause problems. So, it’s better to just delete them.
Here’s how to clear cache files:
- Right-click the Windows icon and select Run.
- Type in temp and press enter.
- Select all the files and folders and Delete Don’t worry about the files and folders that can’t be deleted; just skip them.
- Open Run again and write %temp%, and press enter.
- Select all the files and folders and Delete them, which can be deleted and skip others.
- Launch Run again.
- Type in prefetch and click OK.
- Select all the files and folders and Delete them and skip the others.
2. Clear Microsoft Teams Cache Files
Sometimes cache data can contain corrupted files, which may result in the problem you are facing. Clear the cache file and check whether the problem is fixed or not.
Here’s the process to clear the Teams cache files:
- Close Microsoft Teams and make sure it’s not running in the background.
- Right-click on the Windows icon and select Run.
- Type in %appdata%/Microsoft/Teams to open the Teams cache folder.
- Select all the files and folders and Delete them.
Check out our separate post on Outlook: The Home Menu is Missing.
3. Re-enable Teams Add-in
You are getting this problem might be because the Teams add-in is not properly added to Outlook. Disabling and enabling the Teams add-in will resolve this problem.
Here’s how to disable and enable Teams add-in to Outlook:
- Launch Outlook.
- Go to File > Options > Add-ins.
- Select COM Add-ins and click Go.
- Uncheck Microsoft Teams Meeting Add-in and press OK.
- Restart Outlook.
- Open the COM Add-ins list again.
- Check Microsoft Teams Meeting Add-in and click OK.
After performing these fixes, the pop-up error will no longer pop up.
FAQs
How do I add a team meeting to an existing Outlook invite?
To add Teams meeting to an Outlook invite, go to Calendar and double-click the invite. Choose Teams Meeting from the toolbar and select Send Update.
Can you move Outlook to Teams?
Yes, you can move the emails to chat, your calendar, and meetings to Teams. You’ll need the Teams add-in on your Outlook, which will be automatically installed for Teams users.
How do I turn an email into a meeting?
To turn an email into a meeting, right-click on the email and select Quick Steps > New Quick Step > New Meeting, then add the attendees of the meeting and finish the process.
Final Thoughts
While Outlook is excellent for arranging emails and contacts, it is terrible at organizing meetings and keeping track of our work. And it doesn’t make sense to use Outlook when better alternatives are available, like Teams.
Fortunately, it’s easy to convert Outlook meetings to Teams meetings, and this article explains just that. Also, I’ve described the fixes you might face when transferring the meetings.
Let me know if you have any questions regarding Outlook or other apps. See you in the comment section.
