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We are experiencing an issue with Microsoft Teams People Search in a hybrid Active Directory / Microsoft 365 environment.
One user cannot be found by first name, last name, or display name in Teams, although searching by their full email address works correctly.
The issue affects multiple colleagues and occurs in both Teams Desktop and Teams Web.
The user is correctly displayed in the Outlook Global Address List.
The employee previously left the company and returned several months later. Their AD account was reactivated and their Microsoft 365 E3 license was reassigned.
We have already verified the following:
Active Directory and Entra ID attributes are correct.
The account is enabled and synchronized.
The user is not hidden from Exchange address lists.
Teams configuration and policies appear correct.
Existing Teams conversations and messaging work normally.
A manual Entra Connect synchronization did not resolve the issue.
Interestingly, the user appears in the Teams message search person filter but not in the dedicated People Search results.
Has anyone encountered a similar issue after reactivating a Microsoft 365 user?
Is there a supported method to refresh the user's Teams directory search information?
Thank you for your help.
Recherche de messages ou de threads spécifiques à l’aide d’outils de recherche dans l’historique des conversations Microsoft Teams
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As your issue description is primarily written in English, I will provide my response in English for your convenience. Please feel free to let me know if you would prefer the information in another language.
Hi Admin,
Thank you for providing the details and for confirming the troubleshooting already performed.
Since you have already gone through the common directory, synchronization, and Teams-related troubleshooting steps, and the behavior appears to be isolated to how the user is surfaced in Teams People Search, the best next step would be to contact Microsoft Support for further investigation.
Based on the information provided so far, the issue does not appear to be explained by the checks that have already been performed. As a result, further investigation may be required to determine whether there is a service-side condition affecting how the user is indexed or returned in Teams People Search. Microsoft Support may be able to review additional diagnostics and help identify whether any further action is required.
For guidance on how to request support in the Microsoft 365 admin center, please refer to: Get support - Microsoft 365 admin.
I hope your the issue gets resolved soon.