A subgroup is a group within another group. Subgroups have all the functionality of normal groups, but for someone to be a member of a subgroup, that person must first be a member of the parent (main) group.

Subgroups are not listed in the public directory of groups.

Once someone is a member of the parent group, they can subscribe directly to the subgroup (if permitted), they can be added directly to the subgroup, or they can ask to join the subgroup (if it is restricted).

A group owner can use subgroups for subsets of their main group’s membership. Examples:

• An organization could use a subgroup for its board of directors or use several subgroups for different committees.
• You could create subgroups for different subject areas that are related to your main group.

The GroupManagersForum wiki contains additional information on why one might want to use subgroups.

Note:

• Each subgroup has the same amount of allotted storage space as its parent group.
• Subgroups cannot contain additional subgroups. Groups.io supports only one level of subgroups.
• You can create subgroups during a free trial of a Premium group. However, if you decide not to continue with a paid Premium plan after the trial period is up, those subgroups will be locked. (They will not be deleted, in case you decide to upgrade the group in the future.)