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Can't add MS Teams to my google calendar meetings

Arabella Macpherson 0 Reputation points
2026-02-08T22:52:49.1433333+00:00

I can't add a Microsoft Team link to my Google Calendar meetings, it keeps having me log in and giving the Error 400 Bad Request

Microsoft Teams | Microsoft Teams for business | Calendar | Manage calendars
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  1. Vivian-HT 15,865 Reputation points Microsoft External Staff Moderator
    2026-02-09T01:15:08.19+00:00

    Dear @Arabella Macpherson,

    Thank you for posting your question in the Microsoft Q&A forum.

    I understand that you’re unable to add a Microsoft Teams meeting link to your Google Calendar event, and that the sign‑in process keeps looping and returns a 400 Bad Request error.

    First of all, could you please confirm these questions below to help me diagnose the issue more effectively. I appreciate you taking the time to explain this.

    • What type of Microsoft account are you using to sign in when adding the Teams link (work/school account or personal Microsoft account)?
    • Is your Google Calendar part of a Google Workspace (organization-managed) account, or a personal Google account?
    • Are you able to create Microsoft Teams meetings successfully from Outlook or directly within Microsoft Teams, or does the issue only occur when generating the Teams link from Google Calendar?
    • Does the error occur in all browsers?
    • Are you seeing the 400 Bad Request error immediately after signing in, or only after clicking to add the Teams meeting link?

    This behavior is usually related to an authorization or sign‑in issue between Google Calendar and Microsoft Teams, even though it appears when trying to generate the Teams meeting link. To help resolve this, please try the following:

    Step 1: Sign out of all Microsoft accounts in your browser, then sign back in. Please ensure you are signing in with a Microsoft work or school account that has a Teams license, as personal Microsoft accounts may not work correctly with Google Calendar integration.

    Step 2: Clear your browser cache and cookies or try creating the meeting using an Incognito/Private browser window, as cached sign‑in data can cause repeated authentication failures.

    Step 3: Remove and re‑authorize the Microsoft Teams connection in your Google account’s Third‑party access settings, then try adding the Teams meeting link again.

    Step 4: If you are using Google Workspace, please check with your Google Workspace administrator to ensure that Microsoft Teams is allowed and fully authorized for calendar access. There are a few steps you can try to check the Add-on installation 

    • Open Google Calendar > Settings > Add-ons. 
    • Ensure Microsoft Teams Meeting is installed. If it is, remove and reinstall it from the Google Workspace Marketplace. 

    To learn more, please visit: 

    Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make sure that you completely understand the risk before retrieving any suggestions from the above link. 

    Note: Please understand that as a forum moderator, my role is to provide general guidance and troubleshooting support. I don’t have access to internal systems or backend tools, and I appreciate your understanding of these limits.

    I hope the information shared helps point you in the right direction. Please try the steps above and let me know if they work. If not, we can continue working together to narrow this down.

    The first response may not always resolve the issue right away, but with your help and more details, we can work toward a solution.

    Thank you for your patience and understanding. I'm looking forward for your reply.

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".   

    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  2. AI answer

    2026-02-08T22:53:06.5366667+00:00

    If you're experiencing issues adding a Microsoft Teams link to your Google Calendar meetings and encountering a "400 Bad Request" error, here are a few troubleshooting steps you can try:

    1. Check Your Permissions: Ensure that you have granted all necessary permissions to the Microsoft Teams Meeting add-on in your Google account settings. You can verify this through your Google Admin console.
    2. Use the Correct Teams App Version: Make sure you are using the work version of Microsoft Teams. If you have both personal and work accounts, using the wrong version may lead to issues.
    3. Clear Cache: Clearing the cache of your browser or the Teams app can sometimes resolve unexpected errors. Try clearing your browser cache or resetting the Teams app.
    4. Reinstall the Add-on: If the problem persists, consider uninstalling and then reinstalling the Microsoft Teams Meeting add-on from Google Marketplace.
    5. Check for Updates: Ensure that both your Google Calendar and Microsoft Teams are up to date, as updates can sometimes resolve compatibility issues.
    6. Contact Support: If none of the above steps work, you may want to reach out to support for additional help, especially if this is affecting your ability to schedule meetings.

    These steps should help you troubleshoot the issue with adding Teams links to your Google Calendar meetings.

    AI-generated content may be incorrect. Read our transparency notes for more information.

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