Specifies what type of external user and guest link sharing is enabled for the tenant
public enum SharingCapabilities : intExternal user sharing (share by email) and guest link sharing are both disabled for all site collections in the tenant. No new external user invitations or sharing links can be created, and any content previously shared becomes inaccessible to external users.
External user sharing and guest link sharing are both disabled for the tenant, but AllowGuestUserSignIn is enabled. Each individual site collection's sharing properties govern whether the site collection has sharing disabled or allows existing external user signing in, but a site collection cannot enable guest link sharing and cannot share with new external users.
External user sharing and guest link sharing are enabled for the tenant. Each individual site collection's sharing properties govern whether the site collection has sharing disabled, allows external user sharing only, or allows both external user sharing and guest link sharing.
External user sharing is enabled for the tenancy, but guest link sharing is disabled. Each individual site collection's sharing properties govern whether the site collection has sharing disabled or allows external user sharing, but a site collection cannot enable guest link sharing.