If you've already created groups using your admin control panel and then enable the Google Groups for Business service, all of your existing groups are:
- Migrated to the new service.
- Still listed on the Groups page in your admin control panel.
- Not listed in your domain's Groups directory, which all your users can now access. To show these groups in your Groups directory, you'll need to edit their access settings. Learn more
Learn more about enabling the Google Groups for Business service.
Sharing settings for migrated groups
Migrated groups also receive the default sharing settings, which you can edit on the "Google Groups for Business" page in your admin control panel. Learn more
Access-level settings for migrated groups
Access-level settings are applied to migrated groups differently, depending on whether a group was created before or after the Google Groups for Business service was initially released (December 2009):If a group was created AFTER the Google Groups for Business service was released
The migrated group receives the equivalent access level in the Google Groups for Business service. Learn more about access levels for Google Groups for Business
The migrated group receives these default settings, which provide security:
Who can join the group: No one -- only owners and managers can add members.
Who can send messages to the group: No change. For example, if the group was set to allow only owners to send email to the group, the same setting applies to the group after migration to Google Groups for Business.
Who can view the members list: Only owners and managers. This setting determines who can expand the group's members list in calendar invitations and view it in your Groups directory.
Who can view the discussion archive: Archiving is disabled.