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Microsoft 365 Group naming and expiration policies

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Microsoft 365 Group naming and expiration policies

Naming conventions and expiration policies keep group sprawl manageable. Here's how each works.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/group-naming-and-expiration-policies

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01

Naming policies

Prefixes, suffixes, and blocked words applied at group creation across Outlook, Teams, SharePoint, Planner, the admin center, and Graph.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/group-naming-and-expiration-policies

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02

Expiration policies

Set a group lifetime of 180, 365, or custom days. Owners get renewal notifications and can renew with one click.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/group-naming-and-expiration-policies

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03

What happens if nobody renews

Soft-deleted at expiration, recoverable for 30 days. After that, the group and everything it backs — site, plan, team — is gone for good.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/group-naming-and-expiration-policies

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Activity-driven renewal

An active group (chats, file edits, email) can auto-renew without owner action. The right default for most tenants.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/group-naming-and-expiration-policies

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What policies don't fix

Existing orphaned groups, bad taxonomies, and external access creep all need separate cleanup — naming and expiration only govern new activity.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/group-naming-and-expiration-policies

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Getting a sprawling tenant tidy

One-time cleanup of orphaned and inactive groups, then naming and expiration policies keep things tidy automatically from there.

Solving Microsoft 365 · www.solvingmicrosoft365.com/guides/group-naming-and-expiration-policies

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