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Microsoft’s March 15, 2023 Message Center notice MC527924 moved Teams Meeting Add-in log files to %localappdata%TempMicrosoftTeamsmeeting-addin. Administrators should update scripts and support procedures that look for these add-in logs. The notice’s rollout dates are historical; they do not establish the status of an individual tenant today.
Where are Teams Meeting Add-in logs stored?
The destination named in MC527924 is %localappdata%TempMicrosoftTeamsmeeting-addin. It is a Windows environment-variable path: for a signed-in user, %localappdata% resolves to that user’s Local AppData directory, with Temp beneath it. The full path is therefore user-specific rather than one fixed folder shared by every account.
Microsoft’s notice said the logs “will be stored in %localappdata%TempMicrosoftTeamsmeeting-addin” and instructed IT administrators to update scripts or tooling that retrieved them from the previous location. It did not specify one universal old path, so the old location should be identified from your existing scripts or runbooks rather than assumed. MC527924 as reproduced by M365 Admin
What changed, and when?
MC527924 was issued March 15, 2023. Its schedule described planned rollout windows, not verified completion dates for any particular tenant:
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| Tenant type in the notice | Planned start | Expected finish |
|---|---|---|
| Standard | Mid-March 2023 | Mid-April 2023 |
| GCC, GCC High, and DoD | Mid-April 2023 | Mid-May 2023 |
These windows are past. Use current deployment documentation and the behavior of the specific environment when writing present-day instructions; the announcement alone cannot confirm when a particular tenant received the change. M365 Admin’s reproduction of MC527924
Which Teams log files do you need?
“Teams logs” can mean different files, with different purposes and collection methods. Identify the type before changing a path or asking a user to send files.
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| Log type | Purpose and context | Location or collection method |
|---|---|---|
| Meeting Add-in logs | Logs for the Teams Meeting Add-in; the location covered by MC527924. | %localappdata%TempMicrosoftTeamsmeeting-addin |
| Installation or MSI logs | Installation troubleshooting; path depends on deployment and installation type, including VDI or machine-wide contexts. | Microsoft’s VDI deployment documentation gives an MSI installation-log path under the Teams package’s local cache and identifies per-user installation logs under %localappdata%TempMicrosoftTeamsmeeting-addin. Confirm which installation context applies before using a path. Microsoft Teams for Virtualized Desktop Infrastructure |
| User-collected Teams support files | General Teams client troubleshooting files collected at a user’s request. | Collected from the Teams client and saved to Downloads by default. Microsoft distinguishes encrypted MS Teams Support Log Files from readable weblogs. These are not the add-in logs in MC527924. Microsoft’s Teams support-log instructions |
What should administrators update?
- Search scripts, scheduled monitoring jobs, runbooks, and support instructions for references to the existing Meeting Add-in log location.
- Where the workflow retrieves Meeting Add-in logs, change its target to
%localappdata%TempMicrosoftTeamsmeeting-addin. Ensure the script resolves%localappdata%for the relevant signed-in user rather than assuming the administrator’s profile is the target. - Label troubleshooting requests precisely: Meeting Add-in logs, installation/MSI logs, or user-collected Teams support files. This avoids sending users after a similarly named but unrelated log set.
- For VDI or other specialized deployments, check Microsoft’s current deployment guidance and match the path to the installation context before updating instructions.
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