Hi @Ozzie Velarde,
Thank you for reaching out to Microsoft Q&A Forum.
Microsoft Teams meeting recordings are automatically assigned an expiration date. By default, recordings are deleted after 120 days from the date they are created.
When a recording reaches its expiration date, it is deleted and moved to the Recycle Bin in OneDrive or SharePoint (depending on where the recording is stored). The file owner receives a notification and can restore it within the Recycle Bin retention period.
The retention period can be extended if you have the administrator roles, which usually belongs to the school's IT admins
An administrator can change the default expiration period for Teams meeting recordings using Teams meeting policies.
The expiration value can be set anywhere between 1 day and 99,999 days or disabled entirely using PowerShell so recordings never expire.
For reference: Manage Teams recording policies for meetings and events - Microsoft Teams | Microsoft Learn
Note: Changes apply only to recordings created after the policy change.
If you have edit permissions on the recording file, you can manually change or remove the expiration date directly in OneDrive or SharePoint, since Teams recordings are stored as standard files.
If your organization uses Microsoft Purview retention policies, those policies take precedence and may retain recordings longer than the Teams expiration setting.
I hope this provides enough clarity and helps you stay inform with your current situation.
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