Outlook Contacts Don't Sync in Teams & Contacts in Teams Disappear After Sign Out

Patrick Engro 0 Reputation points
2026-11-11T15:24:43.8833333+00:00

I have two issues with Teams:

  1. Contacts in Outlook never sync to Teams.
  2. If I create a contact in Teams, it is no longer there when I sign back in.

I've tried the following:

  • Closing/Reopening app
  • Signing out/in
  • Signing in via web browser.
  • Repairing and resetting the app via Apps > Installed apps > Microsoft Teams
  • Clearing the cache
  • Re-importing my contacts in Outlook

etc. etc.

If the issue was just that the contacts aren't syncing, I could bite the bullet and spend a couple hours adding the 1000ish contacts into Teams. But there are two problems with this. Firstly, this creates a duplicate contact entry in Outlook. Secondly, and most importantly, once I log out of Teams, all contacts I put directly into Teams are gone when I sign back in. Please help.

Microsoft Teams | Microsoft Teams for business | Other
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  1. Kai-L 21,435 Reputation points Microsoft External Staff Moderator
    2026-11-11T15:47:15.96+00:00

    Dear Patrick,

    As a forum moderator, I genuinely wish I could directly delve into the backend systems to diagnose and fix this for you. Unfortunately, my role here is limited to providing general guidance and solutions that can be applied by users. 

    What you're seeing is likely related to an ongoing service incident: "Users may be unable to view contacts and Speed Dial entries in Microsoft Teams, Outlook desktop and mobile" (issue ID: MO1489432). The developer team is aware of this issue and is actively working on a resolution to roll out a fix as soon as possible. For further details, please review this incident report in the Service health menu in Microsoft 365 admin center. If you are the end-user, please contact your organization's IT administrator or help desk. They can verify the status of the service incident for your tenant and submit a technical support ticket to Microsoft to prioritize a fix. If you don't know who your IT administrator is, please refer to this article: How do I find my Microsoft 365 admin? - Microsoft Support  

    I hope the fix rolls out soon. If you have any additional questions or further information to share, please don’t hesitate to let me know. Thank you for your patience and understanding. Wishing you all the best. 


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