Renewing an expiring inactive team in Microsoft Teams
All Microsoft Teams have a life cycle of one year. If the Team is active at its annual expiration date, it will automatically be renewed.
If a Team hasn't been actively used as it approaches its annual expiration date, it is considered inactive. If your Team is inactive, then you, as an owner, will need to manually renew it. There are three methods by which you can do so.
If you don't renew your Team by its expiration date, you will receive an email message indicating that your Team has been "soft-deleted". You will still be able to renew and recover the Team while it's in this state for up to 30 days post-expiration. However, if you don't renew it within these 30 days, the Team and all associated data will be permanently deleted and unrecoverable.