Guests stay long after the project.
Keep external collaboration in Microsoft 365 under control: every external share goes through a governed Entra B2B guest, guests are reviewed and removed when no longer needed, and sharing policies stay restrictive.
Shared once, open forever.
A file shared with a supplier two years ago is still open. The guest account that went with it was never used again. Some sites accept any outside address, and the shares that still rely on one-time passcodes break as Microsoft retires them.
Every external share, accounted for.
Harven reads your SharePoint admin and Entra ID tenants together: the external users still on one-time passcodes, the guests inactive for 90 days or more, the guests no access review has covered, and the sites open to any domain.
Migrations and reviews, prepared.
Agents prepare the Entra B2B invitations and re-shares, the guest removals and the access reviews assigned to each site owner. Your team validates what needs judgment, and sites with a documented reason stay open.
